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The QA1 four-link rear suspension kit for 1968–1972 GM X-Body is a double-adjustable system that upgrades handling and stance. It accommodates wider wheels and tires up to 11-inch width and 315mm, offers adjustable ride height (+2 to -3 inches) and improves ride quality with advanced coilovers. The kit is designed for minimal welding, no floor pan mods, and straightforward installation.
QA1 68-72 GM X-Body Rear Four Link Suspension System
