QA1 R257-170 Triangulated Four-Link Rear Suspension Conversion Kit with Double-Adjustable Coilovers

The QA1 R257-170 is a complete triangulated four-link rear suspension conversion kit designed to replace factory leaf springs on 1970-1981 2nd Generation GM F-Body vehicles (Camaro and Firebird). This comprehensive kit transforms your rear suspension with coilover shocks and a tubular 4-link system, delivering improved ride quality, enhanced handling performance, and precise stance adjustability.

Key Features:

• Double-adjustable coilover shocks with 170 lbs/in spring rate for independent rebound and compression tunability
• Triangulated 4-link design provides optimized ride height, improved roll center, and lower center of gravity
• Black powder-coated finish for durability and a clean, professional appearance
• Accommodates up to 12-inch-wide wheels and 335mm tires (works with standard width and mini-tub applications)
• Polyurethane bushings for reduced deflection and improved handling response
• Height-adjustable coilovers allow precise ride height tuning without link removal
• Includes spanner wrench and all necessary hardware for installation

Installation Notes:

• Welding required for installation
• Exhaust modification required; will not work with over-the-axle exhaust
• Typical ride height range: 10.75-12 inches (Camaro) or 13.75-15 inches (Firebird) from axle centerline to fender arch
• QA1 subframe connectors strongly recommended
• Maximum wheel and tire width requires mini-tubs

Perfect for both street and track applications, this kit delivers exceptional handling control without compromising daily driving comfort. QA1 shocks are eligible for a limited lifetime warranty when registered at QA1.net/warranty. Proudly manufactured in Lakeville, Minnesota, USA.