9-Inch, 4-Link Suspension Kit for GM F- and X-Body Platform

image of 9-inch, 4-link suspension kit

QA1, the longtime performance automotive suspension components company, unveils a new solution for performance enthusiasts looking to maximize the potential of their first and second-generation GM F-body and 1968 through 1972 X-body vehicles. QA1 introduces a new Ford 9-inch rear end and 4-link suspension kit, pre-assembled as a bolt-in system to improve handling, maximize tire clearance, and provide a comprehensive adjustable setup.

image of 31-spline axles

This is a full upgrade package that centers around a custom-designed Ford 9-inch housing engineered for strength and durability. It features 31-spline axles and is designed to support up to 650 horsepower. Whether you want to improve your quarter-mile runs or just tackle your favorite road course, this is a rear end that provides the foundation for some high-performance driving.

Eliminate the limitations of factory leaf springs. The QA1 triangulated 4-link suspension system allows for complete control over ride height, ride quality, and instant center, giving you improved traction, minimal wheel hop, and predictable handling in any driving situation. Dial in the perfectly calibrated stance and response of your vehicle.

QA1 knows that any enthusiast needs performance and an easy installation. Put together, the rearend and 4-link as a whole are designed to be a true bolt-in, weld-in minimal solution, making upgrading easier. The unit comes pre-installed with trailing arm brackets and anti-squat adjustment right from the box for instant, quality performance.

Beyond performance benefits, the kit opens up more clearance for larger tires and wider wheels. QA1 ensures enthusiasts will be able to reach their performance and styling goals with one integrated package.

A new rear end and 4-link suspension system for 1967-1981 F-body (Camaro and Firebird) and 1968-1972 X-body vehicles.

  • Ford 9-inch housing with a fabricated center section
  • 31-spline axles
  • Designed to support up to 650 horsepower
  • Triangulated 4-link suspension with ride height adjustability, ride quality, and instant center adjustment.
  • QA1 coil overs compatible
  • Bolt-in design for easy installation

image of triangulated 4-link suspension of the 9-inch, 4-link suspension kit

This new 9-Inch, 4-Link Suspension Kit from QA1 provides classic GM muscle car enthusiasts with a complete solution for upgrading their vehicle’s rear end and suspension system. Increased performance capability is combined with improved handling, adjustability, and ease of installation.

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