73-91 GM C10 Sway Bar Bushings 1-1/8in

The 73-91 GM C10 Sway Bar Bushings 1-1/8in from PROTHANE are essential front-end suspension components designed to replace worn factory rubber isolators on classic Chevrolet and GMC full-size trucks and SUVs. Sway bar bushings serve as the critical interface between your vehicle's anti-roll bar and the suspension frame, allowing controlled lateral articulation while dampening body lean during cornering. Factory rubber bushings deteriorate over time, causing clunking noises, loose steering feel, and compromised handling—especially noticeable on older trucks that have seen decades of road use. These polyurethane replacements restore the structural integrity of your front suspension geometry.

PROTHANE's polyurethane construction offers superior durability compared to OEM rubber, resisting UV degradation, ozone, and repeated compression cycles that break down original bushings. The 1-1/8 inch bar diameter specification matches the factory sway bar on these C10 models, ensuring precise fitment and proper load distribution. As a non-greasable design, these bushings eliminate the maintenance burden of traditional rubber components—no periodic lubrication required. The black polyurethane material maintains flexibility across temperature ranges while providing the rigidity needed to reduce chassis flex and improve suspension response, translating to tighter steering feedback and more predictable cornering behavior on both street and light off-road applications.

Restoration builders and daily-driver owners of 1973–1991 GM C10 trucks will appreciate the straightforward installation of this complete kit, which consolidates all necessary bushings for the front sway bar assembly. Whether you're addressing suspension noise on a stock restoration, upgrading handling on a lightly modified build, or maintaining a long-term driver, these PROTHANE bushings deliver the compliance and durability that polyurethane is known for. The compact kit dimensions (4.2 x 3.1 x 4.8 in) ship efficiently, and installation typically requires only basic hand tools and a jack. Compatible with all full-size GM trucks and SUVs in this generation, including Chevrolet C10 and K10 models as well as GMC equivalents.