QA1 R257-170 Rear Suspension Kit for 1970–1981 GM F-Body

The QA1 R257-170 Rear Suspension Kit is designed for 1970–1981 GM F-Body applications and provides a complete rear suspension configuration with a crossmember, double-adjustable shocks, springs, and trailing arms. The kit features a 170 lb/in spring rate for a balanced suspension setup.

Constructed from steel and finished with a black powder coat, this rear suspension kit combines durable materials with a clean, consistent appearance. Its four-link design is intended for compatible GM F-Body suspension applications from the 1970–1981 model years.

With its included suspension components and double-adjustable shocks, the QA1 R257-170 offers a coordinated solution for upgrading the rear suspension system. Verify vehicle application and installation requirements before purchase.

Features:

• Application: Designed for 1970–1981 GM F-Body vehicles
• Suspension Design: Four-link rear suspension kit
• Shock Type: Double-adjustable shocks
• Spring Rate: 170 lb/in
• Included Components: Crossmember, shocks, springs, and trailing arms
• Construction: Steel
• Finish: Black powder coat