The QA1 rear coil-over conversion kit is a bolt-in system for 1979-2004 Ford Mustangs. It includes mounting brackets, single adjustable billet aluminum shocks, 12" springs rated at 130 lb/in, and all necessary hardware. The 18-way single adjuster tunes rebound and compression together, and the fully threaded aluminum body allows up to 2 inches of lowering from stock. Made in the USA and sold as a pair. Does not fit Cobra IRS.
Specifications:
- Lightweight billet aluminum coil-over shock
- Fully threaded shock body for ride height adjustment
- Single adjustable shock, 18 settings of simultaneous rebound and compression adjustment
- 12" coil-over spring rated at 130 lb/in
- 100 percent dyno tested and serialized
- Bolt-in installation
- Made in the USA
- Sold as a pair
- Part number: RCK52402
Vehicle Applications:
- 1979 Ford Mustang
- 1980 Ford Mustang
- 1981 Ford Mustang
- 1982 Ford Mustang
- 1983 Ford Mustang
- 1984 Ford Mustang
- 1985 Ford Mustang
- 1986 Ford Mustang
- 1987 Ford Mustang
- 1988 Ford Mustang
- 1989 Ford Mustang
- 1990 Ford Mustang
- 1991 Ford Mustang
- 1992 Ford Mustang
- 1993 Ford Mustang
- 1994 Ford Mustang
- 1995 Ford Mustang
- 1996 Ford Mustang
- 1997 Ford Mustang
- 1998 Ford Mustang
- 1999 Ford Mustang
- 2000 Ford Mustang
- 2001 Ford Mustang
- 2002 Ford Mustang
- 2003 Ford Mustang
- 2004 Ford Mustang
FAQ
What does this QA1 rear coil-over kit fit?
It fits 1979-2004 Ford Mustangs. See the Vehicle Applications list for the covered years. It does not fit Cobra IRS.
Is this single or double adjustable?
It uses single adjustable shocks, which tune rebound and compression together across 18 settings.
How much lowering does it allow?
The fully threaded aluminum shock body allows up to 2 inches of lowering from stock ride height.
What is included in the kit?
The kit includes mounting brackets, adjustable aluminum shocks, springs, and all necessary hardware, and is sold as a pair.
Does it fit the Cobra IRS?
No. This kit does not fit Mustang Cobra models with the independent rear suspension.

