J&M Products On-Car Adjustable Street Rear Upper Control Arms (23975-B - Black Powder Coat / 3-Piece Poly-Ball) - 1979-2004 Ford Mustang
Fine-tune your rear suspension geometry with J&M Products' on-car adjustable street upper control arms for the 1979-2004 Ford Mustang. Designed to replace weak, flex-prone factory stamped steel arms, these adjustable units allow you to optimize your rear upper control arm length directly on the vehicle, without the need for time-consuming removal. This level of precision is essential for dialing in your Mustang's traction and handling, whether you are on the street or at the track.
Engineered and manufactured in the USA, these arms feature high-strength construction and an advanced 3-piece Poly-Ball bushing strategy. Unlike basic polyurethane upgrades that often cause suspension bind, the Poly-Ball design utilizes a hard inner ball surrounded by resilient outer cups, ensuring bind-free, smooth articulation during aggressive body roll. Finished in a durable black powder coat for excellent corrosion resistance, these arms significantly reduce axle deflection and wheel hop, providing the consistent, planted performance required for serious driving applications.
Features
- On-car adjustable design for precise, convenient rear upper arm geometry tuning
- Advanced 3-piece Poly-Ball bushings provide bind-free, smooth articulation during suspension movement
- Drastically reduces wheel hop, axle deflection, and control arm flex under load
- High-strength tubular construction offers superior rigidity compared to factory stamped steel arms
- Direct bolt-on replacement for 1979-2004 Ford Mustang rear upper locations
- Durable black powder coat finish provides long-lasting corrosion resistance
- Designed, engineered, and manufactured in the USA
- Backed by a lifetime warranty for the original owner
Fitment
- 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
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