Prothane 7-1143 Rear Sway Bar & End Link Bushing Kit 22mm

The Prothane 7-1143 is a rear sway bar and end link bushing kit designed for the C4 Corvette platform, fitting 22mm stabilizer bars. Upgrading from soft OEM rubber to Prothane's premium polyurethane bushings gives the rear sway bar a firmer, more consistent grip — helping to reduce body roll, improve cornering traction, and restore the bar's anti-roll effectiveness.

Unlike factory rubber bushings that can crack, warp, or compress over time, Prothane's polyurethane compound resists breakdown from road grime, oils, and weather exposure. The result is a bushing that maintains its shape and grip for the life of the vehicle.

Key Features:

• Engineered for 22mm rear sway bars
• Grooved inner bore designed to retain Prothane Super Grease for quiet, squeak-free operation
• Polyurethane construction resists deformation, oils, and environmental degradation
• Firmer bushing provides performance comparable to installing a larger diameter sway bar
• Available in Red or Black
• Backed by Prothane's Lifetime Warranty
• Made in the USA

This kit includes both sway bar bushings and end link bushings for a complete rear stabilizer bar bushing refresh. Compatible with larger-diameter aftermarket performance sway bars as well — check Prothane's fitment guide for oversized bar applications.