QA1 67-70 Ford Mustang Rear Suspension Conversion System - Single Adj. 150lb/in
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Transform the way your early Mustang handles with QA1’s rear four-link kit. Designed for 1967-1970 Mustangs, this single adjustable four-link replaces the factory leaf springs with a modern suspension system that delivers improved traction, adjustability, and ride quality. Whether you’re building a street machine or a track-capable restomod, QA1’s four-link gives you the control and confidence you need. MODERN HANDLING FOR YOUR CLASSIC MUSTANG Factory leaf springs were never designed for today’s performance expectations. QA1’s four-link suspension eliminates axle wrap, controls wheel hop, and keeps the tires planted under hard acceleration and cornering. The 18-click, single adjustable shocks allow you to fine-tune ride quality and handling, giving your Mustang a balance of comfort and performance. RIDE HEIGHT & ADJUSTABILITY This kit offers a ride height adjustment range from the stock ride height to 3” lower than factory. That means you can dial in the perfect stance for your build, whether you’re looking for a lowered, aggressive look or stock-like ride height with modern performance benefits. WELD-IN INSTALLATION For maximum strength and durability, this kit requires welding during installation. QA1 engineered the brackets to be self-fixturing, making the process as straightforward as possible. Once installed, the system integrates seamlessly into your Mustang chassis.
- Polyurethane bushings reduce noise while maintaining strength
- Complete kit includes shocks, brackets, hardware, and links
- Single adjustable shocks for fine-tuning ride and handling
- Self-fixturing weld-in brackets for easier installation
- Works with factory axle housings or QA1 9” housings
- Ride height adjustability: 3” of adjustment
- Provides predictable traction and stability
- Powder-coated components for durability
- Eliminates axle wrap and wheel hop
- Fits 1967-1970 Ford Mustangs
The state of California has determined that certain chemicals used in the manufacture of this product have been known to cause cancer and birth defects.
For more information visit: www.P65Warnings.ca.gov

