Trailing Arm Bushing GM

The Allstar Performance Trailing Arm Bushing GM (ALL 56245) is a high-performance polyurethane suspension component engineered for GM A-Body and G-Body vehicles manufactured between 1965 and 1988. This black polyurethane bushing replaces the factory rubber trailing arm bushing, providing superior durability and consistent suspension geometry under demanding driving conditions. For serious enthusiasts, street racers, and performance shop technicians, this component is critical for maintaining precise rear axle alignment during acceleration, braking, and cornering.

Polyurethane bushings outperform standard rubber components in several key ways. Factory rubber deteriorates under heat, UV exposure, and repeated stress cycles, causing the trailing arm to move excessively within the suspension mounting point. This movement translates directly to inconsistent rear axle tracking, unpredictable handling feel, and accelerated tire wear. Polyurethane resists compression set and maintains its mechanical properties across a much wider temperature range, ensuring the trailing arm stays properly located relative to the chassis. For vehicles subject to frequent launches, track use, or daily performance driving, this consistency is non-negotiable.

This bushing is engineered specifically for the trailing arm geometry of GM A-Body and G-Body platforms—including Chevrolet Chevelle, El Camino, and Malibu models, as well as Pontiac GTO and Oldsmobile Cutlass variants. Installation requires basic suspension work and fits seamlessly into the factory trailing arm mounting bracket. A single bushing weighs 0.71 lbs and measures 4.1 x 2.3 x 7 inches, confirming it as a direct OEM-replacement component. Buyers upgrading their suspension for handling improvement, chassis stiffness, or reliability should verify fitment against their specific year and model before ordering.

Allstar Performance is recognized within the performance automotive community for producing suspension components that balance cost-effectiveness with measurable durability gains. When combined with other suspension upgrades—updated sway bars, control arm bushings, or rear axle housing upgrades—polyurethane trailing arm bushings form part of a comprehensive chassis stiffening strategy that noticeably improves handling feedback and reduces body roll during aggressive driving.