Prothane 7-1123-BL GM Rear Sway Bar Bushing 11/16" Single Bolt Polyurethane Black

The Prothane 7-1123-BL is a polyurethane rear stabilizer bar bushing designed for GM vehicles with a 11/16" diameter sway bar using a single-bolt mounting configuration. Engineered to replace the factory rubber bushings that degrade over time and allow excessive body roll, this polyurethane upgrade delivers noticeably firmer, more precise handling characteristics.

Key Features:

• Firm polyurethane construction — significantly stiffer than OEM rubber for improved handling response and reduced body roll
• Grooved bore design — engineered to retain Prothane Super Grease for smooth, quiet operation and long service life
• 11/16" inner diameter — fits standard GM rear sway bar applications with single-bolt bracket mounting
• Black color — color-coded for easy identification and a clean under-vehicle appearance
• Direct OEM replacement — bolt-in fitment requiring no modification to factory mounting hardware
• Increased durability — polyurethane resists oil, ozone, and road chemicals far better than factory rubber

Prothane's polyurethane bushings are a trusted performance suspension upgrade for restoring and improving the handling of classic GM cars and trucks. These bushings are also compatible with larger-diameter high-performance aftermarket sway bars where sizing matches. Each bushing features Prothane's signature grooved inner bore to ensure proper lubrication retention throughout the bushing's lifespan.