VTT A9X, G42, G2X Front Bushing Insert Kit

Want to tighten up the differential on your A9X Supra, G42 2 Series, or G2X BMW and eliminate unwanted differential movement during hard launches, aggressive driving, or cornering? VTT has you covered with our Billet Differential Insert Kit.

Precision CNC-machined from 6061-T6 aluminum and anodized black for a durable, corrosion-resistant finish, these inserts are designed to fill the voids in the factory differential bushings, significantly reducing differential movement while maintaining excellent street manners.

The result is improved drivetrain stability, more consistent launches, reduced wheel hop, and a more connected feel during hard acceleration and cornering.

Installation is straightforward and can be completed with basic hand tools. Simply remove the differential mounting bolts one at a time, lower the differential slightly, install the billet inserts, and replace the factory hardware with the supplied upgraded bolts and washers.

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Kit Includes

• 2 Front Billet Differential Inserts
• 2 Rear Billet Differential Inserts
• 2 Hardened 46mm Steel Washers
• 2 M12x1.5 x 110mm Mounting Bolts

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Features & Benefits

• CNC-machined from 6061-T6 aluminum
• Black anodized finish for long-term durability
• Reduces differential movement under load
• Improves launch consistency and drivetrain response
• Helps minimize wheel hop
• Enhances rear-end stability during cornering
• Direct bolt-in installation

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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 bushings and decreasing some of their sound-dampening characteristics.

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Fitment Guide

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Toyota

• A90 Supra
• A91 Supra

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BMW

• G42 2 Series
• G20 3 Series
• G22 4 Series
• G29 Z4
• Additional G-Chassis BMW models utilizing the same differential mounting configuration