78-88 GM A/G-Body Adj. Upper Trailing Arms

The 78-88 GM A/G-Body Adj. Upper Trailing Arms from Hotchkis Performance deliver precision rear suspension geometry for classic Chevrolet and Pontiac platforms built between 1978 and 1988. These adjustable upper trailing arms are engineered for enthusiasts and professional fabricators who demand tight, responsive handling and improved chassis control during spirited driving or track-oriented applications. Whether upgrading a street machine or competition build, quality trailing arms are foundational to modern suspension tuning on legacy platforms.

Each pair features tubular aluminum and steel construction with greasable polyurethane bushings that balance compliance and durability while eliminating the wear patterns of factory rubber components. The adjustable design allows fine-tuning of rear axle alignment—pinion angle, ride height, and anti-squat geometry—critical variables for maintaining traction and reducing unwanted weight transfer during acceleration or cornering. The natural and black finish resists corrosion while the polyurethane bushings withstand repeated stress cycles, heat cycles, and chemical exposure far better than factory elastomers, ensuring repeatable performance over thousands of miles.

This complete pair is ideal for owners of 1978–1988 Chevrolet Malibu, Monte Carlo, El Camino, and Pontiac Grand Am or Grand Prix models seeking improved handling and modern suspension geometry. Installation requires basic mechanical skill and access to a lift or jack; alignment should be verified by a qualified technician after fitment to ensure optimal tire wear and handling balance. The adjustable nature of these arms makes them compatible with both stock and lowered suspensions, allowing customization to match your specific ride height and performance objectives.