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CSP2026

QA1 R123-130 - 64-66 Ford Mustang Rear Suspension Conversion System - Single Adj. 130lb/in

QA1  |  SKU: BJGM-R123-130
Sale price $2,38395 Regular price $2,64102

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Description

QA1 R123-130 - 64-66 Ford Mustang Rear Suspension Conversion System - Single Adj. 130lb/in

QA1 R123-130 Four Link Kit Single Adjustable

1964-1966 Ford Mustang

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 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.

  • Fits 1964–1966 Ford Mustangs
  • Single adjustable shocks for fine-tuning ride and handling
  • 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
  • Complete kit includes shocks, brackets, hardware, and links
Coil Spring Relaxed Length: 12
Air Adjustable: No
Coil Spring Compressed Length: 8
Coil Spring Insulator(s) Included: No
Strut Mount Insulator(s) Included: No
Brand: QA1
Grade Type: Performance
Manufacturer Part Number: R123-130
Suspension Type: Spring
UPC: 806990234612
Bushing Color: Black
Bushing Material: Polyurethane
Coil Spring Color: Silver
Coil Spring Material: Chrome Silicon Alloy
Rear Shocks Relaxed Length: 16.38
Rear Shocks Compressed Length: 11.13

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