Differential Mounts

VTT F9X X3/4M Rear Bushing Insert Kit

T#:26404885

Part#: VTT-X3M-REAR-IN1

In Stock

$ 139.99 USD

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$ 139.99 USD

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URO Differential Cover for E46 M3

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:37993429

Part#: 33112282482

In Stock

$ 241.99 USD

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$ 241.99 USD

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Differential bushing failure is a common weak point of the E46 M3. Bushings are not sold separately, you will need the whole rear cover.

VTT Billet BMW Transfer Case Bushing Inserts - Version A

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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VTT F9X X3/4M Front Bushing Inserts

T#:26404887

Part#: VTT-X3M-FR-INS

Back Ordered

$ 104.99 USD

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$ 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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VTT- Rear Differential Bushing Insert Kit- F97/F98 X3M X4M

T#:25739329

Part#: VTT-F9X-RBIK

Ships in 10 Business Days

$ 135.99 USD

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$ 135.99 USD

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Race German HD Differential Stud Kit

T#:2602234

Part#: HDE30DIFFSTUDKIT

Ships in 2 Business Days

$ 59.99 USD

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$ 59.99 USD

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This stud kit makes installing and removing the differential a breeze. Made from heat treated 10.9 grade carbon steel, and then black zinc coated for corrosion resistance. Features 10.9 Grade Corrosion Resistant Studs Extra Thick Stainless Steel Washer Black Oxide Conical Lock Nut Loctite for installation

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F9X X3/4M Billet Diff Lock Down Kit

T#:26404860

Part#: VTT-F9X-LDK

Back Ordered

Starting at $ 314.99 USD

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Starting at $ 314.99 USD

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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 Aluminum Differential Bushings - E82 1 M, E9X M3

T#:587016

Part#: IRPDB-9XMAL

Special Order: No Guaranteed ETA

$ 133.99 USD

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$ 133.99 USD

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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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Billet Diff Lock Down Kit

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

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Sale - Save 7%

$ 313.99

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

Starting at $ 291.99 USD

Add to Wish List

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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IRP Aluminum Differential Bushings - E46 M3

T#:587020

Part#: IRPDB-46MAL

Special Order: No Guaranteed ETA

$ 151.99 USD

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$ 151.99 USD

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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: 33172282484 Recommended for racing use only Includes: 2 rear aluminum bushing 1 front aluminum bushings

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VTT F9X X3/4M Rear Bushing Insert Kit

URO Differential Cover for E46 M3

VTT Billet BMW Transfer Case Bushing Inserts - Version A

VTT F9X X3/4M Front Bushing Inserts

VTT- Rear Differential Bushing Insert Kit- F97/F98 X3M X4M

Race German HD Differential Stud Kit

F9X X3/4M Billet Diff Lock Down Kit

IRP Aluminum Differential Bushings - E82 1 M, E9X M3

Billet Diff Lock Down Kit

IRP Aluminum Differential Bushings - E46 M3

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