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Drivetrain Mounts and Upgrades

From the factory, engine and transmission mounts are rubber and thus a wear component. Worn out engine or transmission mounts create sloppiness and a disconnect between the driver and your BMW's powerplant. If your vehicle is purpose built for the track, we recommend solid engine and transmission mounts. These have zero deflection, but come at the expense of added NVH (noise, vibration, and harshness). Poly engine and transmission mounts offer a good balance between OEM rubber and solid mounts for those with mixed purpose vehicles, offering great performance and connection with little sacrifice in terms of NVH.

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Revshift - Corporate Logo
T#:600155
Part#: PTM-BT
In Stock
$ 59.99 USD
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$ 59.99 USD
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95A Track (Green): Significantly stiffer and stronger than OEM rubber. Noticeable increase in NVH. Excellent for enthusiastically driven street and track cars.
IRP - Individual Racing Parts - Corporate Logo
T#:401413
Part#: IRPEGS-2
In Stock
$ 185.99 USD
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$ 185.99 USD
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Stock mounts are made from soft rubber and are sometimes filled with fluid to give a car the most comfortable ride possible. The soft rubber and fluid helps to reduce the total amount of vibration, noise, and harshness (NVH) that is transferred into the cabin. The problem with this is driveline slop. The stock mounts allow a lot of excess movement and increases the amount of time it takes to transfer power to the wheels.

In order to address this issue, performance mounts can be substituted to reduce the amount of slop and transfer power to the wheel quicker. Two options for this are polyurethane mounts and solid mounts.

Solid mounts are great for an immediate transfer of power but allow for a ton of noise and vibration to be felt and heard in the cabin of the vehicle. This is great for the track where there aren't any issues with excess harshness, but as a daily driver, this can become an annoying pain in the neck.

The best middle ground is Polyurethane. Polyurethane is much stiffer than rubber and gives you the much stiffer feel you may be looking for. This allows for the increase in responsiveness, but isn't so extreme that it transfers all of the sound and vibrations into the cabin. This makes it much more comfortable for daily use while still reinforcing your driveline.

Features:

  • Aluminum and Polyurethane Construction
  • 80A Durometer Rating
  • New Hardware
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Revshift - Corporate Logo
T#:1120843
Part#: PMM-R36
Ships on Sep 3, 2026
$ 149.99 USD
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$ 149.99 USD
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These mounts are designed for the BMW E36 and E46 including the M3, Z3, and Z4 as well as the E90/E92 M3. Excluding the E46 XI. Revshift polyurethane motor mounts are made in the U.S.A. from high-grade polyurethane. Revshift mounts are the most durable and reliable mounts on the market. CNC machined billet aluminum flanged ends are embedded deep in the urethane which prevents the isolated ends from separating under extreme loads. Utilizing class 14.9 alloy steel removable screws these mounts will hold your engine in place for a lifetime. To further ensure the strength of these mounts we form the threads with a forming tap which creates denser and stronger threads in the billet aluminum end pieces. These mounts have removable screws for ease of installation. We recommend using Loctite on the threads during installation. Revshift Performance Engineering is a high-performance parts manufacturer with a focus on quality, reliability, and performance. Utilizing high-precision machining technologies and their very own Polyurethane Manufacturing Department, every Revshift product is designed, manufactured, and tested in-house at their Detroit, Michigan facility.
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Revshift - Corporate Logo
T#:1105943
Part#: PTM-E9XM395A
Back Ordered
$ 119.99 USD
Free Shipping
$ 119.99 USD
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BMW E9X M3/E6X M5/M6 Polyurethane Transmission Mounts offer superior performance for both street and track use with their 95A durometer rating. These mounts are engineered by Revshift to provide maximum durability and reliability.

  • High-Performance Material: Made from high-grade polyurethane in the U.S.A., ensuring longevity and resilience.
  • Durable Construction: CNC machined 6061-T6 billet aluminum flanged ends are embedded deep into the polyurethane to prevent separation under extreme loads.
  • Easy Installation: Features removable class 14.9 threaded studs with a hex wrench for simple and convenient installation.
  • Versatile Use: Ideal for street driving and track applications, combining performance with comfort.
  • Precision Engineering: Manufactured and tested in-house at Revshift’s Detroit facility, utilizing advanced machining technologies and quality control processes.

Revshift Performance Engineering is renowned for its commitment to quality and performance, making these transmission mounts a reliable choice for enhancing vehicle handling.

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Revshift - Corporate Logo
T#:47885235
Part#: PTM-BT-80A
Back Ordered
$ 59.99 USD
Free Shipping on orders $49 and up
80A Street (Black) Bushings: Stiffer and stronger than OEM rubber. Minimal increase in NVH. Great choice as an upgrade over stock mounts (OEM+).
Revshift - Corporate Logo
T#:27405455
Part#: PDB-F8X-80A
In Stock
$ 249.99 USD
Free Shipping on orders $49 and up

Upgrade your vehicle's rear differential with the Revshift Polyurethane Rear Differential Bushing Set, delivering superior performance and stability. Engineered with precision and premium materials, this set is perfect for street applications, offering enhanced handling and reduced drivetrain movement without compromising on noise, vibration, or harshness levels. This kit is ideal for any enthusiast looking to improve vehicle dynamics without sacrificing overall comfort.

Key Features:

Easy Installation: Two-piece design enables straightforward installation using the included Revshift bushing lube, making upgrading hassle-free. Street Performance: Designed for street use, striking a balance between comfort and performance for everyday driving. Enhanced Stability: Minimize rear differential movement for improved stability and traction during acceleration, cornering, and braking. Durable Polyurethane Construction: Crafted from high-quality polyurethane, ensuring durability and long-lasting performance under daily driving conditions. Reduced Noise and Vibration: Soft and pliable 80A durometer construction significantly reduces NVH compared to higher-durometer or solid alternatives. Upgrade your vehicle's rear differential with the Revshift Polyurethane Rear Differential Bushing Set to experience a noticeable improvement in handling, stability, and overall driving dynamics. Elevate your street performance with confidence and precision.

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Vargas Turbo Technologies - Corporate Logo
T#:26404885
Part#: VTT-X3M-REAR-IN1
In Stock
$ 139.99 USD
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$ 139.99 USD
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Condor Speed Shop - Corporate Logo
T#:578193
Part#: DIFSTKT-1
In Stock
$ 32.00 USD
Free Shipping on orders $49 and up
Condor Speed Shop took the hard work out of removing and reinstalling your differential! If you've ever taken out your diff, you know how much of a pain it is to get the bolt holes to line up during re-installation. They never seem to line up perfectly, and getting the bolts to go in can be time-consuming. Condor's diff studs are designed to make your life a little easier. The diff will line up and lift right into the holes every time. 38mm studs are used with OEM or regular subframe bushings. 45mm studs are used with the 12mm riser subframe bushings. You'll need to pull the driveshaft to drop the diff. Use thread locker during install. Recommended for street or race use. Kit includes: 4 Studs 4 Washers 4 Lock Nuts
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Condor Speed Shop - Corporate Logo
T#:577863
Part#: G260TBRACE
Ships in 1 Business Day
$ 75.00 USD
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$ 75.00 USD
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Ultra-light aluminum G260 transmission brace for 24V engine swaps. This brace must be used if swapping a 24v motor into an e30, with the original G260 transmission. *Please note you will need to bend/twist the selector rod to get your shift lever in the correct orientation.
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Revshift - Corporate Logo
T#:41728752
Part#: PDB-E46M-80A
Ships in 6 Business Days
$ 109.99 USD
Free Shipping on orders $49 and up
Revshift polyurethane differential bushings completely replace the OEM rubber bushings on the E46 M3 and Z4M. These bushings stiffen the differential, improving the vehicle's handling capabilities and eliminating drive-line slop.
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Revshift - Corporate Logo
T#:582011
Part#: PDBE46MGREEN
Ships in 2 Business Days
$ 109.99 USD
Free Shipping
$ 109.99 USD
Free Shipping
Revshift polyurethane differential bushings completely replace the OEM rubber bushings on the E46 M3 and Z4M. These bushings stiffen the differential, improving the vehicle's handling capabilities and eliminating drive-line slop.
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Burger Motorsports - Corporate Logo
T#:637547
Part#: BMS-DSBB-F
Back Ordered
Starting at $ 129.00 USD
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Starting at $ 129.00 USD
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The BMS differential brace attaches the rear differential to the subframe allowing better launches, less wheel hop, and a more stable feeling rear chassis. Their unique one-piece construction eliminates welding weak points common on similar units. No logos or markings are visible for a stealth OEM appearance.
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Burger Motorsports - Corporate Logo
T#:1316770
Part#: E9XDIFFBRACE-SM
Back Ordered
$ 99.00 USD
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$ 99.00 USD
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BMW E9X 335i BMS Differential Support Bracket Brace - Small Case

The BMW E9X 335i BMS Differential Support Bracket Brace - Small Case is a high-performance upgrade designed to enhance the stability and durability of the differential mount. Turner Motorsport offers this precision-engineered brace to reduce flex and movement of the differential, ensuring improved power transfer and handling. Ideal for high-performance driving or track use, this brace helps maintain proper alignment and extends the lifespan of your differential components.

Benefits:

  • Enhances differential stability by reducing flex and movement
  • Improves power transfer and handling performance
  • Precision-engineered for a perfect fit and reliable performance
  • Ideal for high-performance driving and track use
  • Extends the lifespan of differential components
  • Made from high-quality materials for durability and strength
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Vargas Turbo Technologies - Corporate Logo
T#:26404870
Part#: VTT-XFER-CASE-BU
Ships in 10 Business Days
$ 137.99 USD
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$ 137.99 USD
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Soft bushings are the enemy of launching hard, and keeping your drivetrain together. The BMW Transfer Case bushings are notoriously soft, and that is the opposite of what you want when launching a car hard. You can replace the bushing with a solid one, but this is time-consuming usually requires lowering or removing the transfer case, and results in a lot of added NVH. The best path is simply to reduce the amount of flex of the factory bushing so you keep the nice manners when cruising around town, and at idle, but when its time to the launch the transfer case cannot move as it could without the insert. These come as a set of two with 2 bolts to keep them in place. Install time once you get to them is about 2-3 minutes. Could not be easier. Put some lube on them, push them in, and tighten the screws. These are a MUST for high-power G8X, and F9X X3/X4M Builds. All platforms they fit are below. Features: 6061- T6 aluminum construction Easy to install Fully reversible Do not add NVH
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Revshift - Corporate Logo
T#:1105936
Part#: SMM-E30
Ships in 2 Business Days
$ 44.99 USD
Free Shipping on orders $49 and up
Solid bolt through 70D polyurethane motor mounts. Recommended for race use only. These mounts are designed for a 1983-1991 E30 BMW 3-series with an M20 engine. Revshift motor mounts are made by Revshift in the U.S.A. from high-quality polyurethane. 70D polyurethane has a comparable hardness to plastics such as Delrin and UHMW. Unlike plastic, polyurethane is an elastomer which means it will return to its original shape if deformed and it will not crack. We do not recommend plastics for automotive use due to their inherent brittleness and inability to return to their original shape when deformed. Revshift Performance Engineering is a high-performance parts manufacturer with a focus on quality, reliability, and performance. Utilizing high-precision machining technologies and their very own Polyurethane Manufacturing Department, every Revshift product is designed, manufactured, and tested in-house at their Detroit, Michigan facility.
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Revshift - Corporate Logo
T#:1105908
Part#: PDB-E3095A
Ships in 3 Business Days
$ 49.99 USD
Free Shipping on orders $49 and up
Utilizing high-precision machining technologies and their very own Polyurethane Manufacturing Department, every Revshift product is designed, manufactured, and tested in-house at their Detroit, Michigan facility.
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Revshift - Corporate Logo
T#:1105935
Part#: PMM-E30-95A
Ships in 4 Business Days
$ 89.99 USD
Free Shipping
$ 89.99 USD
Free Shipping
These mounts are designed for a 1983-1991 E30 BMW 3-series with an M20 engine. Revshift polyurethane motor mounts are made in the U.S.A. from high-grade polyurethane. Revshift mounts are the most durable and reliable mounts on the market. CNC machined billet aluminum flanged ends are embedded deep in the urethane which prevent the isolated ends from separating under extreme loads. Utilizing class 14.9 alloy steel removable screws these mounts will hold your engine in place for a lifetime. To further ensure the strength of these mounts we form the threads with a forming tap which creates denser and stronger threads in the billet aluminum end pieces. These mounts have removable screws for ease of installation. We recommend using loctite on the threads during installation. Revshift Performance Engineering is a high-performance parts manufacturer with a focus on quality, reliability, and performance. Utilizing high-precision machining technologies and their very own Polyurethane Manufacturing Department, every Revshift product is designed, manufactured, and tested in-house at their Detroit, Michigan facility.
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Vargas Turbo Technologies - Corporate Logo
T#:26404887
Part#: VTT-X3M-FR-INS
Back Ordered
$ 104.99 USD
Free Shipping
$ 104.99 USD
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Looking to fix the diff bolt issue on your F9X X3/4M? VTT has taken a 3 pronged approach by offering a triple solution, one part of the solution is the front diff bushing inserts. These are pressed into the factory bushing, and fill the voids in the bushing. This keeps the stock bushing ride compliance but removes any unwanted movement. These are sold as a set Kit includes: Two Billet Bushing inserts Two 46mm Hardened Steel Washers
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Condor Speed Shop - Corporate Logo
T#:577564
Part#: S14M+T
Ships in 3 Business Days
$ 80.00 USD
Free Shipping
$ 80.00 USD
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These specific mounts are designed for those with clearance issues on extremely low E30s. They are 20mm taller than OEM mounts to add necessary clearance to ensure the oil pan sits above the stock subframe. Under hard braking the OEM rubber mounts allow the m20 to lean forward. Not only do these solid UHMW replacement mounts stiffen the engine and drivetrain, but they also raise the engine by 20mm, dramatically changing the responsiveness and raising the oil pan height of your E30. UHMW is an excellent general-purpose plastic with a unique combination of wear and corrosion resistance, low friction surface and impact strength. It is resistant to chemical attack and moisture absorption and retains key physical properties to -30 C. This kit includes Solid Transmission Mounts as well for fully solid powertrain mounting!
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Condor Speed Shop - Corporate Logo
T#:577859
Part#: M20M_TRANS
Ships in 3 Business Days
$ 79.00 USD
Free Shipping
$ 79.00 USD
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Under hard braking the stock mounts allow the m20 to pitch forward and to the side. These solid UHMW replacement mounts stiffen the engine and drivetrain, dramatically changing the responsiveness of your BMW E30. These solid UHMW motor mounts are a direct replacement for your original 1984-1991 E30 BMW 323, 325e 325es 325i 325ic 325is' OEM rubber motor mounts. UHMW is an excellent general-purpose plastic with a unique combination of wear and corrosion resistance, low friction surface and impact strength. It is resistant to chemical attack and moisture absorption and retains key physical properties to -30 C. Includes solid transmission mounts as well!
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Vargas Turbo Technologies - Corporate Logo
T#:25739322
Part#: VTT-BTCBI
Ships in 10 Business Days
$ 136.99 USD
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$ 136.99 USD
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Revshift - Corporate Logo
T#:1105938
Part#: STM-BT
Ships in 7 Business Days
$ 89.99 USD
Free Shipping
$ 89.99 USD
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Solid bolt through 70D polyurethane trans mounts. Recommended for race use only. These trans mounts fit almost all BMW cars excluding the E30 M3 and a few older models. They commonly fit the E30, E36, E46, E9x, E8x, E21, E34, E39. Common BMW part numbers that these trans mounts replace are: 22316799331 23711175939 23711175424 23701141614 Revshift polyurethane transmission mounts are made in the U.S.A. from high-grade polyurethane. 70D polyurethane has a comparable hardness to plastics such as Delrin and UHMW. Unlike plastic, polyurethane is an elastomer which means it will return to its original shape if deformed and it will not crack. We do not recommend plastics for automotive use due to their inherent brittleness and inability to return to its original shape when deformed. Revshift Performance Engineering is a high-performance parts manufacturer with a focus on quality, reliability, and performance. Utilizing high-precision machining technologies and their very own Polyurethane Manufacturing Department, every Revshift product is designed, manufactured, and tested in-house at their Detroit, Michigan facility.
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Revshift - Corporate Logo
T#:1105934
Part#: PMM-24V-95A
Ships in 7 Business Days
$ 149.99 USD
Free Shipping
$ 149.99 USD
Free Shipping
These mounts are designed for a 1983-1991 E30 BMW 3-series with a 24 valve M50/M52/S50/S52/S54 engine swap with an E21, 2002tii, or VW MK2 Golf brake booster. They use the OEM motor mount bolt holes on the E30 subframe. The mounts are angled with offset bolts to position the engine so that proper drivetrain alignment is maintained. They are used with E36 engine brackets. Revshift motor mounts are made by Revshift in the U.S.A. from high-quality polyurethane. Revshift mounts are the most durable and reliable mounts on the market. CNC machined billet aluminum flanged ends are embedded deep in the urethane which prevents the isolated ends from separating under extreme loads. Utilizing class 14.9 alloy steel removable screws these mounts will hold your engine in place for a lifetime. To further ensure the strength of these mounts we form the threads with a forming tap which creates denser and stronger threads in the billet aluminum end pieces. These mounts have removable screws for ease of installation. We recommend using Loctite on the threads during installation. Revshift Performance Engineering is a high-performance parts manufacturer with a focus on quality, reliability, and performance. Utilizing high-precision machining technologies and their very own Polyurethane Manufacturing Department, every Revshift product is designed, manufactured, and tested in-house at their Detroit, Michigan facility.
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Condor Speed Shop - Corporate Logo
T#:577966
Part#: E30_M10M_TRANS
In Stock at Vendor
$ 115.00 USD
Free Shipping
$ 115.00 USD
Free Shipping
These solid UHMW motor mounts are made specifically for M10 powered e30s. Under hard braking the stock mounts allow the M10 to lean forward. These solid UHMW replacement mounts stiffen the engine and drivetrain, dramatically changing the responsiveness of your 318. These solid UHMW motor mounts are a direct replacement for OEM rubber motor mounts. UHMW is an excellent general-purpose plastic with a unique combination of wear and corrosion resistance, low friction surface and impact strength. It is resistant to chemical attack and moisture absorption and retains key physical properties to -30 C. Includes solid transmission mounts as well.
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Condor Speed Shop - Corporate Logo
T#:597365
Part#: TRANSIX_F2XF3X
In Stock at Vendor
$ 34.00 USD
Free Shipping on orders $49 and up
These UHMW race grade transmission mounts are the ultimate solution to keep your transmission from moving under heavy load or acceleration. Transmission movement or "play" can cause missed shifts and extreme mechanical damage in some cases.
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Revshift - Corporate Logo
T#:1105907
Part#: PDB-E3695A
Ships on Sep 1, 2026
$ 109.99 USD
Free Shipping
$ 109.99 USD
Free Shipping
Utilizing high-precision machining technologies and their very own Polyurethane Manufacturing Department, every Revshift product is designed, manufactured, and tested in-house at their Detroit, Michigan facility.
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Revshift - Corporate Logo
T#:1105905
Part#: PDB-E4695A
Special Order: No Guaranteed ETA
$ 129.99 USD
Free Shipping
$ 129.99 USD
Free Shipping
Utilizing high-precision machining technologies and their very own Polyurethane Manufacturing Department, every Revshift product is designed, manufactured, and tested in-house at their Detroit, Michigan facility.
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Revshift - Corporate Logo
T#:1120845
Part#: PMM-R300
Ships in 2 Business Days
$ 149.99 USD
Free Shipping
$ 149.99 USD
Free Shipping
These mounts are designed for the BMW E34 with an M30 or S38 engine and the BMW E39 with an M52 or M54 engine. Revshift polyurethane motor mounts are made in the U.S.A. from high-grade polyurethane. Revshift mounts are the most durable and reliable mounts on the market. CNC machined billet aluminum flanged ends are embedded deep in the urethane which prevents the isolated ends from separating under extreme loads. Utilizing class 14.9 alloy steel removable screws these mounts will hold your engine in place for a lifetime. To further ensure the strength of these mounts we form the threads with a forming tap which creates denser and stronger threads in the billet aluminum end pieces. Revshift Performance Engineering is a high-performance parts manufacturer with a focus on quality, reliability, and performance. Utilizing high-precision machining technologies and their very own Polyurethane Manufacturing Department, every Revshift product is designed, manufactured, and tested in-house at their Detroit, Michigan facility.
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Condor Speed Shop - Corporate Logo
T#:577960
Part#: E34M_TRANS
Ships in 1 Business Day
$ 139.00 USD
Free Shipping
$ 139.00 USD
Free Shipping
Solid UHMW 525i engine mounts for your M50tu powered E34. Under hard braking the stock mounts allow the motor to pitch forward and to the side. These solid UHMW replacement mounts stiffen the engine and drivetrain, dramatically changing the responsiveness of your BMW E34. These solid UHMW motor mounts are a direct replacement for your original E34 525i BMW OEM rubber motor mounts. UHMW is an excellent general-purpose plastic with a unique combination of wear and corrosion resistance, low friction surface and impact strength. It is resistant to chemical attack and moisture absorption and retains key physical properties to -30 C. Includes transmission mounts.
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Vargas Turbo Technologies - Corporate Logo
T#:597677
Part#: VTT-INSERT-2
Ships in 10 Business Days
$ 178.99 USD
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$ 178.99 USD
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Instead of completely replacing the mount, simply make a billet aluminum insert for them. This leaves the feel of the factory mount in place but stiffens them up quite a bit removing unwanted engine movement without rattling your teeth out or emptying your wallet.
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Vargas Turbo Technologies - Corporate Logo
T#:25739329
Part#: VTT-F9X-RBIK
Ships in 10 Business Days
$ 135.99 USD
Free Shipping
$ 135.99 USD
Free Shipping

Condor Speed Shop - Corporate Logo
T#:577565
Part#: S14M
Ships in 1 Business Day
$ 55.00 USD
Free Shipping on orders $49 and up
These specific mounts are designed for those with clearance issues on extremely low E30s. They are 20mm taller than OEM mounts to add necessary clearance to ensure the oil pan sits above the stock subframe. Under hard braking the OEM rubber mounts allow the m20 to lean forward. Not only do these solid UHMW replacement mounts stiffen the engine and drivetrain, but they also raise the engine by 20mm, dramatically changing the responsiveness and raising the oil pan height of your E30. UHMW is an excellent general-purpose plastic with a unique combination of wear and corrosion resistance, low friction surface and impact strength. It is resistant to chemical attack and moisture absorption and retains key physical properties to -30 C.
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Revshift - Corporate Logo
T#:1105937
Part#: SMK-E30
Ships in 4 Business Days
$ 64.99 USD
Free Shipping
$ 64.99 USD
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Solid bolt through 70D polyurethane motor and trans mounts. Recommended for race use only. These mounts are designed for a 1983-1991 E30 BMW 3-series with an M20 engine. Revshift motor mounts are made by Revshift in the U.S.A. from high-quality polyurethane. 70D polyurethane has a comparable hardness to plastics such as Delrin and UHMW. Unlike plastic, polyurethane is an elastomer which means it will return to its original shape if deformed and it will not crack. We do not recommend plastics for automotive use due to their inherent brittleness and inability to return to their original shape when deformed. Revshift Performance Engineering is a high-performance parts manufacturer with a focus on quality, reliability, and performance. Utilizing high-precision machining technologies and their very own Polyurethane Manufacturing Department, every Revshift product is designed, manufactured, and tested in-house at their Detroit, Michigan facility.
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Condor Speed Shop - Corporate Logo
T#:577575
Part#: PLYE10TRANS
Ships in 2 Business Days
$ 23.99 USD
Free Shipping on orders $49 and up
$ 23.99 USD
Free Shipping on orders $49 and up
Condor Speed Shop - Corporate Logo
T#:577962
Part#: E34M30_TRANS
Ships in 2 Business Days
$ 139.99 USD
Free Shipping
$ 139.99 USD
Free Shipping
Solid UHMW 535i engine mounts for your m30 powered E34. Under hard braking the stock mounts allow the engine to pitch forward and to the side. These solid UHMW replacement mounts stiffen the engine and drivetrain, dramatically changing the responsiveness of your E34. These solid UHMW mounts are a direct replacement for your original E34 535i BMW OEM rubber motor mounts. UHMW is an excellent general-purpose plastic with a unique combination of wear and corrosion resistance, low friction surface and impact strength. It is resistant to chemical attack and moisture absorption and retains key physical properties to -30 C.
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Revshift - Corporate Logo
T#:27405531
Part#: PDB-F8X-95A
Ships in 7 Business Days
$ 249.99 USD
Free Shipping on orders $49 and up

Upgrade your vehicle's rear differential with the Revshift Polyurethane Rear Differential Bushing Set, delivering superior performance and stability. Engineered with precision and premium materials, this set is perfect for track applications, offering enhanced handling and reduced drivetrain movement. This kit is ideal for any enthusiast looking to keep their drivetrain from moving during track use.

Key Features:

Easy Installation: Two-piece design enables straightforward installation using the included Revshift bushing lube, making upgrading hassle-free. Track Performance: Designed for race use with maximum stiffness polyurethane. Enhanced Stability: Minimize rear differential movement for improved stability and traction during acceleration, cornering, and braking. Durable Polyurethane Construction: Crafted from high-quality polyurethane, ensuring durability and long-lasting performance under daily driving conditions. Upgrade your vehicle's rear differential with the Revshift Polyurethane Rear Differential Bushing Set to experience a noticeable improvement in handling, stability, and overall driving dynamics. Elevate your racing performance with confidence and precision.

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14mm Front Differential Bushing Upgrade
You will need to drill the diff casing & tap to M14x1.5
Condor Speed Shop - Corporate Logo
T#:597385
Part#: 14MME36DIFFBU
Ships in 2 Business Days
$ 130.00 USD
Free Shipping
$ 130.00 USD
Free Shipping
These E36 & E36 M3 Differential Bushings from Condor Speed Shop are designed for the street and the track. You won't have to worry about any more rubbery flex in your diff mounts during hard acceleration. They use UHMW in all their suspension bushings because they are stiff, and have almost zero deflection while also absorbing vibration. It will outlast other types of rubber and polyurethane bushings.
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Condor Speed Shop - Corporate Logo
T#:597363
Part#: TRANSIX_E39P
Ships in 1 Business Day
$ 35.00 USD
Free Shipping on orders $49 and up
The 70A poly mounts are the solution if you are trying to minimize vibration and NVH. They are currently the softest polyurethane mounts on the market. We suggest these for all street cars. If you are building a track car, check out the solid UHMW transmission mounts from Condor Speed Shop.
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Revshift - Corporate Logo
T#:1120841
Part#: PTM-E30M395A
Special Order: No Guaranteed ETA
$ 99.99 USD
Free Shipping
$ 99.99 USD
Free Shipping
These mounts are the most durable and reliable mounts on the market. CNC machined 6061-T6 billet aluminum flanged ends are molded deep into the polyurethane which prevent the isolated ends from separating under extreme loads. The class 14.9 threaded studs are removable with a hex wrench for ease of installation.
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Condor Speed Shop - Corporate Logo
T#:577959
Part#: E34M
Ships in 2 Business Days
$ 117.00 USD
Free Shipping
$ 117.00 USD
Free Shipping
Solid UHMW 525i engine mounts for your M50tu powered E34. Under hard braking the stock mounts allow the motor to pitch forward and to the side. These solid UHMW replacement mounts stiffen the engine and drivetrain, dramatically changing the responsiveness of your BMW E34. These solid UHMW motor mounts are a direct replacement for your original E34 525i BMW OEM rubber motor mounts. UHMW is an excellent general-purpose plastic with a unique combination of wear and corrosion resistance, low friction surface and impact strength. It is resistant to chemical attack and moisture absorption and retains key physical properties to -30 C.
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Condor Speed Shop - Corporate Logo
T#:577964
Part#: E30_M42M_TRANS
Ships in 2 Business Days
$ 125.00 USD
Free Shipping
$ 125.00 USD
Free Shipping
These solid UHMW motor mounts are made specifically for M42 powered e30s. Under hard braking the stock mounts allow the M42 to lean forward. These solid UHMW replacement mounts stiffen the engine and drivetrain, dramatically changing the responsiveness of your 318. These solid UHMW motor mounts are a direct replacement for OEM rubber motor mounts. UHMW is an excellent general-purpose plastic with a unique combination of wear and corrosion resistance, low friction surface and impact strength. It is resistant to chemical attack and moisture absorption and retains key physical properties to -30 C. Fitment: 1990-1991 E30 BMW 318i, 318is, 318ic
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Revshift - Corporate Logo
T#:582010
Part#: PMME30GREEN
Ships in 7 Business Days
$ 119.99 USD
Free Shipping
$ 119.99 USD
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These mounts are designed for a BMW E30 M3. Revshift polyurethane motor mounts are made in the U.S.A. from high-grade polyurethane. Revshift mounts are the most durable and reliable mounts on the market. CNC machined billet aluminum flanged ends are embedded deep in the urethane which prevents the isolated ends from separating under extreme loads. Utilizing class 14.9 alloy steel removable screws these mounts will hold your engine in place for a lifetime. To further ensure the strength of these mounts we form the threads with a forming tap which creates denser and stronger threads in the billet aluminum end pieces. Revshift Performance Engineering is a high-performance parts manufacturer with a focus on quality, reliability, and performance. Utilizing high-precision machining technologies and their very own Polyurethane Manufacturing Department, every Revshift product is designed, manufactured, and tested in-house at their Detroit, Michigan facility.
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Vargas Turbo Technologies - Corporate Logo
T#:26404860
Part#: VTT-F9X-LDK
Back Ordered
Starting at $ 314.99 USD
Free Shipping on orders $49 and up
Starting at $ 314.99 USD
Free Shipping on orders $49 and up
VTT noticed a hole in the F9X X3/4M market for a high-quality, lightweight, NVH-friendly, and easy-to-install Diff Lock Down kit to improve diff stability under launching, and hard cornering. So we did something about it and went to work on a very innovative design that 100% positively locks the diff down from movement, while shielding it from adding a ton of NVH, and can be used with the stock diff, and subframe bushings. This design uses existing mounting points on the vehicle, you do NOT have to remove the subframe or the Diff to install. Simply remove 4 differential bolts, drill two holes in the subframe slightly bigger, install two M8 riv-nuts, and install the lockdown, you do not even have to move the exhaust. A typical install can be 30-45 minutes for someone who is experienced working on vehicles, an hour or two if you like taking it slow. Features: Lightweight 1.5 lbs for the entire lockdown plate Uses FOUR connection points on the Diff, and three on the subframe for the ultimate in positive diff location, this will stop all diff movement on launch, saving your guibos, etc 100% Billet construction from 6061-T6 aluminum Anodized in 3 colors for corrosion resistance, a long-lasting finish, and good looks The subframe does NOT have to be removed for installation Uses all 12.9 grade hardware Does not add excessive NVH Positively locks down the diff to eliminate all unwanted movement under launches, acceleration, cornering, etc.
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IRP - Individual Racing Parts - Corporate Logo
T#:2423579
Part#: IRPEM-9XAL
Special Order: No Guaranteed ETA
$ 264.99 USD
Free Shipping on orders $49 and up
Direct replacement performance mounts. Features: CNC machined lightweight high quality anodized aluminum Replaces OE: 22116760330; 22116773744 Includes: 2 pcs. aluminum engine mounts

IRP - Individual Racing Parts - Corporate Logo
T#:401414
Part#: IRPEGS-1
Special Order: No Guaranteed ETA
$ 185.99 USD
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$ 185.99 USD
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Stock mounts are made from soft rubber and are sometimes filled with fluid to give a car the most comfortable ride possible. The soft rubber and fluid helps to reduce the total amount of vibration, noise, and harshness (NVH) that is transferred into the cabin. The problem with this is driveline slop. The stock mounts allow a lot of excess movement and increases the amount of time it takes to transfer power to the wheels.

In order to address this issue, performance mounts can be substituted to reduce the amount of slop and transfer power to the wheel quicker. Two options for this are polyurethane mounts and solid mounts. 

The middle ground is Polyurethane. Polyurethane is much stiffer than rubber, but these still let a large amount of movement in comparison to solid mounts. These are great for sporty, aggressive street driving, but for the track are not ideal.

For the track, solid mounts are great. Solid mounts give you an immediate transfer of power, at the cost of increase NVH. This is great for the track where comfort is the least of your worries and power is all that is important.

Features:

  • Aluminum and Polyurethane Construction
  • 80A Durometer Rating
  • New Hardware
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IRP - Individual Racing Parts - Corporate Logo
T#:587016
Part#: IRPDB-9XMAL
Special Order: No Guaranteed ETA
$ 133.99 USD
Free Shipping
$ 133.99 USD
Free Shipping
These aluminum mounts are a direct replacement for the stock rubber bushings and have been lightened to remove excess weight. Using aluminum instead of rubber eliminates the "wind up" inherent in rubber mounts, and this deflection slows suspension & drivetrain response. The tradeoff is an increase in NVH. Features: Stiffens chassis/Improves stability Less wear of other components Better durability Provides better control of chassis geometry Replaces OE: 33312284019, 33312283384 Recommended for racing use only Includes: 1 rear aluminum bushing 2 front aluminum bushings
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Enthusiast Bundles - Corporate Logo
T#:37284813
Part#: 047282LAEBKT
In Stock
Sale - Save 26% $ 536.98

This product was last offered at the strikethrough price on
05-05-2026

$ 399.00 USD
Free Shipping on orders $49 and up
Sale - Save 26%
$ 536.98

This product was last offered at the strikethrough price on
05-05-2026

$ 399.00 USD
Free Shipping on orders $49 and up

Turner Motorsport Differential Brace for F-Chassis N55/B58

Unleash the full potential of your N55/B58 engine with the Turner Motorsport Differential Brace, crafted to deliver stability and minimize deflection. Designed to withstand high-performance demands, this brace minimizes unwanted differential movement and provides a more immediate, responsive power transfer to the wheels, even at extreme torque levels.

Key Benefits:

Enhanced Driving Stability: Improved traction, reduced wheel hop, and an overall tighter rear-end feel. Durability: Reduces stress on factory rubber bushings, extending their life and protecting the differential bearing. Precision Fitment: Constructed from 6061-T6 aluminum with a Turner Blue anodized finish, engineered using FARO laser scanning and CAD technology. High-Grade Hardware: Equipped with corrosion-resistant Yellow Zinc-Chromate coated 10.9 fasteners, this brace is built for lasting strength. Installation Note:

Installation requires precision drilling (10mm and 15mm carbide bits) for a secure fit.

95A Polyurethane Differential Bushings

These high-performance polyurethane differential bushings from ECS Tuning deliver durability and an optimal balance of comfort and control. Designed to reduce differential deflection and improve throttle response, the 95A durometer polyurethane bushings bring track-level stability to your daily drive, without the noise or harshness of solid mounts.

Sturdy & Resistant: Made from tough 95A durometer polyurethane with anodized 6061-T6 aluminum sleeves, they resist chemicals, salt, and wear. Enhanced Handling & Control: Reduce wheel hop and improve throttle response, giving you better control in high-stress scenarios, from spirited driving to daily commuting. Engineered for Strength: Designed to handle extreme driveline forces, ECS Tuning’s bushings optimize power transfer while maintaining smooth performance. What's Included:

Turner Blue Anodized Rear Differential Brace Precision drill guides and complete hardware Polyurethane Differential Bushings for a superior driving experience

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Vargas Turbo Technologies - Corporate Logo
T#:21176906
Part#: VTT-A9X-DLD
In Stock
Sale - Save 7% $ 313.99

This product was last offered at the strikethrough price on
05-04-2026

Starting at $ 291.99 USD
Free Shipping on orders $49 and up
Sale - Save 7%
$ 313.99

This product was last offered at the strikethrough price on
05-04-2026

Starting at $ 291.99 USD
Free Shipping on orders $49 and up
VTT noticed a hole in the A9X/Z4 market for a high-quality, lightweight, NVH-friendly, and easy-to-install Diff Lock Down kit to improve diff stability under launching, and hard cornering. Vargas went to work on a very innovative design that 100% positively locks the diff down from movement, while shielding it from adding a ton of NVH, and can be used with the stock diff, and subframe bushings. This design uses existing mounting points on the vehicle, you do NOT have to remove the subframe or the Diff to install. Simply remove 4 diff bolts, drill two holes in the subframe slightly bigger, install two M10 riv-nuts, and install the lockdown, you do not even have to move the exhaust. A typical install can be 15-30 minutes for someone who is experienced. You will need a Riv-nut tool to install the Riv-nuts as one is not included. Features: Lightweight 1.5 lbs for the entire lockdown plate Uses FOUR connection points on the Diff, and two on the subframe for the ultimate in positive diff location, this will stop all diff movement on launch, saving your guibos, etc 100% Billet construction from 6061-T6 aluminum Anodized in 4 colors for corrosion resistance, a long-lasting finish, and good looks The subframe does NOT have to be removed for installation Uses all 12.9 grade hardware Does not add excessive NVH Positively locks down the diff to eliminate all unwanted movement under launches, acceleration, cornering, etc.
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Revshift - Corporate Logo
T#:1105941
Part#: PMM-M42-95A
Ships in 7 Business Days
$ 149.99 USD
Free Shipping on orders $49 and up
These mounts are designed for an E30 with a M42 engine and an E34 with a M50 or M20 engine. Revshift polyurethane motor mounts are made in the U.S.A. from high-grade polyurethane. Revshift mounts are the most durable and reliable mounts on the market. CNC machined billet aluminum flanged ends are embedded deep in the urethane which prevents the isolated ends from separating under extreme loads. Utilizing class 14.9 alloy steel removable screws these mounts will hold your engine in place for a lifetime. To further ensure the strength of these mounts we form the threads with a forming tap which creates denser and stronger threads in the billet aluminum end pieces. These mounts have removable screws for ease of installation. We recommend using Loctite on the threads during installation. Revshift Performance Engineering is a high-performance parts manufacturer with a focus on quality, reliability, and performance. Utilizing high-precision machining technologies and their very own Polyurethane Manufacturing Department, every Revshift product is designed, manufactured, and tested in-house at their Detroit, Michigan facility.
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