More Clearance for Lowered Cars
Right above the rear axle housing is a long rubber bushing called the Axle Bumpstop, or pinion snubber. This prevents the axle housing hitting the floor pan under extreme compression of the suspension. If you lower your 1979-2004 Mustang the stock axle bumpstop is too long and it can hit the rear axle housing when you go over even the smallest bumps.
This BBK polyurethane axle bump stop bushing is much shorter and must be used when installing a lowering spring kit on your car. This is a simple direct bolt on to replace your factory axle bump stop.
Does NOT Fit 1999-2004 Cobra