VTT A9X, G8X, G42, G2X Rear Bushing Insert Kit

VTT A9X, G8X, G42, G2X Rear Bushing Insert Kit

Want to tighten up the rear differential on your 2021+ G8X M3/M4, A9X Supra, G42 2 Series, or G2X BMW and eliminate unwanted differential movement during hard launches? VTT has you covered with our Rear Billet Differential Insert Kit. This precision CNC-machined billet insert is designed to press into the factory rear differential bushing, filling the voids in the OEM rubber bushing to dramatically reduce differential movement under load.

Want to tighten up the rear differential on your 2021+ G8X M3/M4, A9X Supra, G42 2 Series, or G2X BMW and eliminate unwanted differential movement during hard launches? VTT has you covered with our Rear Billet Differential Insert Kit.

This precision CNC-machined billet insert is designed to press into the factory rear differential bushing, filling the voids in the OEM rubber bushing to dramatically reduce differential movement under load. By reinforcing the factory bushing rather than replacing it, the kit maintains the majority of the stock ride quality and comfort while improving drivetrain stability, launch consistency, and power transfer.

Installation is simple. Support the differential, remove the factory rear differential bolt, and use the factory bolt to press the billet insert into place. Once installed, replace the factory hardware with the supplied upgraded bolt, washers, and lock nut.

Kit Includes

• One CNC-Machined Billet Differential Bushing Insert
• Two 49mm Hardened Steel Washers
• One Grade 12.9 M14 Bolt
• One M14 Lock Nut

NVH Notice

As with any drivetrain-mounting upgrade, a slight increase in noise, vibration, and harshness (NVH) may be noticed. This is normal and results from reducing movement in the factory rubber bushing and decreasing some of its sound-dampening characteristics.

Fitment

Toyota

• A90 Supra
• A91 Supra

BMW

• G80 M3
• G81 M3 Touring
• G82 M4
• G83 M4 Convertible
• G42 2 Series
• G20 3 Series
• G22 4 Series
• Additional G-Chassis BMW models utilizing the same rear differential bushing configuration

• Free US shipping on orders over $250.
• Free pickup at our Dallas shop, usually ready within 24 hours.
• Unused parts can be returned within 30 days. Tunes, opened electronics, merch and installed parts are final sale.
• Want it installed? Book the install at thegbmotors.com.

Full details are on our shipping and returns page.