This QA1 system converts 1968-1970 Mopar B-body cars from leaf-spring rear suspension to a coil-over kit with a triangulated four-link design. It delivers a more planted feel, makes room for larger wheels and tires, corrects wheelbase and allows a 3-inch bumper-exit exhaust. The kit comes complete with powder-coated tubular components, including the crossmember and upper and lower trailing arms, plus the necessary installation hardware. It works with popular rear axles including the Mopar 8 3/4 inch, Ford 9 inch and Dana 60. This version uses double-adjustable coil-overs, which QA1 recommends for cars regularly used for drag racing, autocross or road racing. Installation requires a small amount of cutting and welding on the frame and axle housing.
Specifications:
- Type: triangulated four-link coil-over rear suspension conversion
- Shocks: double-adjustable coil-overs
- Components: powder-coated tubular crossmember and upper and lower trailing arms, with hardware
- Axle compatibility: Mopar 8 3/4 inch, Ford 9 inch, Dana 60
- Exhaust: allows 3-inch bumper-exit exhaust
- Installation: small amount of cutting and welding on frame and axle housing
- Part number: R253-175
Vehicle Applications:
- 1968 Dodge Charger
- 1969 Dodge Charger
- 1970 Dodge Charger
- 1968 Dodge Coronet
- 1969 Dodge Coronet
- 1970 Dodge Coronet
- 1968 Plymouth Belvedere
- 1969 Plymouth Belvedere
- 1970 Plymouth Belvedere
- 1968 Plymouth GTX
- 1969 Plymouth GTX
- 1970 Plymouth GTX
- 1968 Plymouth Road Runner
- 1969 Plymouth Road Runner
- 1970 Plymouth Road Runner
- 1968 Plymouth Satellite
- 1969 Plymouth Satellite
- 1970 Plymouth Satellite
FAQ
What does the QA1 R253-175 kit replace?
It converts the leaf-spring rear suspension on 1968-1970 Mopar B-body cars to a coil-over triangulated four-link system.
Which rear axles does it work with?
The kit works with popular rear axles including the Mopar 8 3/4 inch, Ford 9 inch and Dana 60.
What exhaust will it allow?
The design allows a 3-inch bumper-exit exhaust.
Does installation require welding?
Yes. Installation requires a small amount of cutting and welding on the frame and axle housing.
