UMI Performance Aftermarket Rear End Sway Bar Installation Kit- Stock RearThis rear sway bar mounting kit is the perfect solution for vehicles with aftermarket rear ends that lack factory sway bar provisions and use smaller 2. 75" axle tubes. It includes all necessary components to easily install a factory or aftermarket sway bar onto your new rear end, featuring bolt on CNC machined bushing mounts with welded gussets, heavy duty zinc plated chrome moly u bolts, and extended end links for proper clearance and geometry.