Prothane 7-1128-BL Sway Bar Bushing Kit GM Rear 1-1/8" Polyurethane Black

The Prothane 7-1128-BL is a polyurethane stabilizer bar bushing kit designed as a direct replacement for the factory rubber sway bar bushings on GM rear applications. Engineered to fit 1967–1981 GM Camaro and Firebird platforms with a 1-1/8" diameter sway bar, these bushings deliver a measurable upgrade in handling performance and durability over worn OEM rubber components.

Key Features:

• Polyurethane construction — significantly firmer than stock rubber, reducing body roll and improving cornering response
• Grooved bore design — precision-machined grooves hold Prothane Super Grease for smooth, rattle-free, long-lasting operation
• Black color — color-coded black polyurethane formulation for easy identification and a clean appearance
• 1-1/8" (1.125") inner diameter — engineered to match factory and high-performance rear stabilizer bar diameters
• Bolt-in replacement — designed for straightforward installation using factory hardware and mounting locations
• Resistant to oils, solvents, and road grime — polyurethane outperforms rubber in harsh underhood and underbody environments
• Compatible with larger diameter high-performance sway bars — verify fitment for upgraded aftermarket bars

Prothane polyurethane bushings are a proven solution for restoring or upgrading sway bar performance on classic GM muscle cars. By eliminating the flex and deterioration inherent in OEM rubber bushings, this kit tightens up the suspension feel and extends service life. Prothane's Super Grease is recommended for installation to ensure optimal performance and noise-free operation.