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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.
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
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$ 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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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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Revshift - Corporate Logo
T#:582011
Part#: PDBE46MGREEN
Ships in 2 Business Days
$ 109.99 USD
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$ 109.99 USD
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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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Active Autowerke - Corporate Logo
T#:397248
Part#: 13-004
Ships in 8 Business Days
5% off MSRP $ 429.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 408.00 USD
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5% off MSRP
$ 429.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 408.00 USD
Free Shipping

The main mounting bolt for the differential in the E36 is susceptible to shearing off during extreme driving conditions. This can cause internal damage to your diff, leaving you stranded at the track or on the side of the road. Active Autowerke's differential support bracket eliminates this issue forever in under an hour installation.

 

Previously used Active Autowerke Part Number AA-DSB-E36

This product fits the following BMWs:
1992-1999 E36 323i 325i 328i M3

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Burger Motorsports - Corporate Logo
T#:1316770
Part#: E9XDIFFBRACE-SM
Back Ordered
$ 99.00 USD
Free Shipping
$ 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#:1105935
Part#: PMM-E30-95A
Ships in 4 Business Days
$ 89.99 USD
Free Shipping
$ 89.99 USD
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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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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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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
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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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Vargas Turbo Technologies - Corporate Logo
T#:597677
Part#: VTT-INSERT-2
Ships in 10 Business Days
$ 178.99 USD
Free Shipping
$ 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
Revshift - Corporate Logo
T#:1105937
Part#: SMK-E30
Ships in 4 Business Days
$ 64.99 USD
Free Shipping
$ 64.99 USD
Free Shipping
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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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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Revshift - Corporate Logo
T#:582010
Part#: PMME30GREEN
Ships in 7 Business Days
$ 119.99 USD
Free Shipping
$ 119.99 USD
Free Shipping
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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