SuperPro Rear Spring Shackle Upper Bushing Kit | Universal (SPF2051K) YMM_2020_2026_Ford_Mustang_Shelby_GT500_III Driver confidence and enjoyment are

Driver confidence and enjoyment are enhanced to a new level on the road and on the track

No special tools or adjustments are necessary

Designed to work seamlessly with factory suspension components for a perfect fit

even under aggressive driving scenarios

Supports consistent engine temperatures

SuperPro Rear Spring Shackle Upper Bushing Kit | Universal (SPF2051K) YMM_2020_2026_Ford_Mustang_Shelby_GT500_III Driver confidence and enjoyment areRear Spring Shackle Upper Bushing Kit by SuperPro These bushings are often overlooked when upgrading the suspension of a 4WD. Leaf spring bushings stabilize the movement of the rear axle, inferior bushes in this area will cause the solid rear axle to move and impart rear end passive steer to the vehicle. It also causes the vehicle to 'wander' all over the road and be unstable under heavy braking. This can be especially noticeable carrying a load or