The QA1 0.875in (7/8in) tubular rear sway bar is engineered for 1964-1970 Ford Mustang models running the QA1 rear coilover conversion and 4-link crossmember. Adding rear roll stiffness reduces understeer and body roll, sharpens handling, and keeps the car more level and planted through corners. The kit bolts directly to the QA1 4-link crossmember with no cutting or welding and includes polyurethane bushings and heavy-duty mounting hardware.
Specifications:
- Rear sway bar kit, 0.875in (7/8in) tubular construction
- Engineered for the QA1 rear coilover conversion and 4-link crossmember
- Reduces body roll and improves cornering balance
- Bolts directly to the QA1 4-link crossmember, no cutting or welding
- Includes polyurethane bushings and heavy-duty hardware
- Durable black powder coat finish
- Part number: 52900
Vehicle Applications:
- 1964 Ford Mustang
- 1965 Ford Mustang
- 1966 Ford Mustang
- 1967 Ford Mustang
- 1968 Ford Mustang
- 1969 Ford Mustang
- 1970 Ford Mustang
FAQ
What does the QA1 52900 rear sway bar require?
It is designed to bolt directly to the QA1 4-link crossmember used in the QA1 rear coilover conversion for 1964-1970 Mustangs.
What size is the bar?
It is a 0.875in (7/8in) tubular rear sway bar.
Is cutting or welding needed?
No. The kit bolts to the QA1 4-link crossmember and includes polyurethane bushings and heavy-duty hardware.

