QA1 1970-1981 Chevrolet Camaro & Pontiac Firebird Rear Four Link Suspension System (R157-170)

Fits 1970-1981 Chevrolet Camaro and Pontiac Firebird models. This QA1 rear four-link suspension system replaces restrictive factory leaf springs with a modern triangulated 4-link configuration, providing superior axle control and a fully adjustable ride height for the second-generation GM F-Body.

Constructed with tubular steel links and featuring single-adjustable Proma Star coilover shocks, this kit allows you to fine-tune dampening and dial in the perfect stance. The design provides significantly more clearance than factory setups, accommodating wheels up to 12 inches wide and 335-series tires when used with mini-tubs. By relocating the suspension pick-up points, it optimizes roll center and center of gravity for improved cornering stability and traction without sacrificing street drivability.

• Manufacturer Part Number: R157-170
• Adjustable ride height: Typical range 10.75" to 12" (Camaro) / 13.75" to 15" (Firebird) from axle centerline to fender arch
• Single-adjustable Proma Star shocks for simultaneous compression and rebound tuning
• Includes spanner wrench for easy coilover height adjustment
• Supports both standard and mini-tubbed wheel wells
• Requires welding for installation
• Requires exhaust modification (will not clear over-the-axle exhaust systems)
• QA1 subframe connectors strongly recommended for chassis rigidity
• Made in the USA