QA1 Four Link Kit Double Adjustable (1964-1966 Mustang) - R223-130
Transform the way your early Mustang handles with QA1’s rear four-link kit. Designed for 1964–1966 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 double adjustable shocks allow you to fine-tune performance and handling giving your Mustang a balance of comfort and control. 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.
Fits 1964–1966 Ford Mustangs
Complete kit includes shocks brackets hardware and links
Double adjustable shocks for outstanding performance
Eliminates axle wrap and wheel hop
Provides predictable traction and stability
Ride height adjustability: 3” of adjustment
Works with factory axle housings or QA1 9” housings
Self-fixturing weld-in brackets for easier installation
Polyurethane bushings reduce noise while maintaining strength
Powder-coated components for durability
QA1 specializes in providing performance shocks
suspension components
carbon fiber driveshafts
rod ends
ball joints and more to a variety of automotive markets
including circle track racing
drag racing
street performance
and street rodding. With over 83
000 square feet of manufacturing space in Lakeville
MN
QA1 is proud to offer an extensive line of American-made suspension and driveline. Founded in 1993 by Jim Jordan
QA1 introduced rod ends and spherical bearings specifically for the performance racing industry
quickly becoming the #1 name in rod ends
spherical bearings
custom linkages and similar products to the motorsports industry. Always on the cutting edge of technology
QA1 recently introduced in-house filament winding of carbon fiber and similar materials to provide driveshafts and other products. With continued focus on fine-tuning and expanding its offering of American-made high performance suspension components and carbon fiber driveshafts
QA1 has grown to be a household name in the performance aftermarket.
