Want A Discount?!
Enter your email for exclusive savings and any updates from us at MCB
QA1 Coilover 4 Link R223-130
$2,878.11
Skip to product information
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.
QA1 Coilover 4 Link R223-130
$2,878.11
- 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
Attributes:
- Brand Name: QA1
- GTIN: 00806990234636
- Air Adjustable: No
- Bushing Color: Black
- Bushing Material: Polyurethane
- Coil Spring Color: Silver
- Coil Spring Compressed Length: 8
- Coil Spring Insulator(s) Included: No
- Coil Spring Material: Chrome Silicon Alloy
- Coil Spring Relaxed Length: 12
- Grade Type: Performance
- Manufacturer Part Number: R223-130
- Rear Shocks Compressed Length: 11.13
- Rear Shocks Relaxed Length: 16.38
- Strut Mount Insulator(s) Included: No
- Suspension Type: Spring
- UPC: 806990234636
Extended Information:
- Country of Origin: US
- Emissions : Announced
- Life Cycle Status: Available To Order
Packing Information:
- Quantity of Each: 1
- Package UOM: EA
- Dimension: 9.5 x 21 x 8 inches
- Weight: 40 POUNDS