BMR Rear Cradle and Differential Bushing Kit - Street Version (BK003) - 08-09 Pontiac G8
Eliminate wheel hop, reduce rear cradle movement, and control differential deflection on your Pontiac G8 with a complete Street Version Bushing Kit from BMR Suspension. Factory rubber subframe and differential bushings are designed with large air pockets and soft compounds, resulting in excessive movement, chassis flex, and power-robbing pinion rise under acceleration. Combining BMR's differential bushings (BK001) and cradle bushing inserts (BK002) into one comprehensive package, the BK003 kit locks down your rear subframe for maximum power transfer.
The kit features a dual-durometer polyurethane construction tailored for street performance: 68-durometer black polyurethane differential bushings to absorb road noise while minimizing deflection, paired with rigid 95-durometer cradle bushing inserts to fill factory voids. Highly resistant to road salt, ozone, and petroleum products, this upgrade dramatically improves handling stability, throttle response, and launch consistency without a harsh increase in noise, vibration, or harshness (NVH). Designed for street performance applications, installation takes approximately 5–6 hours.
Features
- Complete street version package combining rear differential and cradle bushing kits (BK001 & BK002)
- Molded from specialized 68-durometer (differential) and 95-durometer (cradle) polyurethane
- Significantly reduces differential deflection, pinion rise, and rear cradle movement
- Eliminates wheel hop and increases rear-end stability during hard launches
- Improves overall handling, throttle response, and traction
- Absorbs road noise and engine vibrations to maintain comfortable cabin NVH levels
- Resistant to road salt, petroleum products, and harsh undercar elements
- Designed specifically for street performance applications
- Durable black finish
- Installation takes approximately 5–6 hours
- Proudly designed and built in the USA
Fitment
- 2008 Pontiac G8
- 2009 Pontiac G8
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