This rear upper control arm replaces the factory stamped control arm reducing wheel hop and increasing traction. The S197 Mustang chassis uses a 3-link rear suspension system with a panhard bar to control the rear end under the vehicle. Under hard loads the factory pieces tend to flex and rubber bushings deflect leading to poor traction and erratic handling. Replacing the factory pieces with stronger well designed items eliminates this flex allowing for better control of the vehicle and improved traction during launches.
This upper control arm is a direct bolt-on replacement and features a spherical Roto-Joint. The Roto-Joint design is a pivot ball lined with a greaseable delrin race designed to offer 28 degrees of total unrestricted movement, more than adequate for a bind free, low friction operation. The Roto-Joint design improves performance over the factory rubber and aftermarket polyurethane bushings by allowing the suspension to articulate correctly, and provides precision handling. The installed UMI Roto-Joint allows rear end free movement when high handling, auto cross or road race is a concern while still being a 100% streetable setup. The installed delrin race, which lines the spherical ball, absorbs shock and road noise for a quiet and smooth operation on any street or track driven vehicle.
Features:
On car adjustable using a chrome moly, heat treated adjuster
Mounting plate CNC machined from 0.250� thick mild steel
Fully TIG welded for superior strength
4140 chrome moly threaded tube adaptors
Spherical Roto-Joints installed
Shipped fully assembled and ready to install
Uses OEM hardware
Brilliant and durable powder coat finish

Available for the following vehicles:
• Ford Mustang 2005-2010