UMI Performance rear control arm kit for 1999–2004 Ford Mustang combines adjustable lower arms with non-adjustable fixed-length upper arms to reduce wheel hop and improve cornering stability. Lower arms use DOM steel tubing with 4130 chrome-moly threaded adapters, CNC machining and TIG welding for strength. Both arms include polyurethane bushings, zinc-plated sleeves and grease fittings and install as a bolt-on using OEM hardware in about an hour.
UMI Performance 99-04 Ford Mustang Upper & Lower Rear Control Arms Kit