Adjustability is crucial when it comes to tuning your street car's suspension. Our Ultimate "on-car" adjustable upper control arms for the rear of your GM vehicle have been meticulously designed with the best materials and components available. We have replaced weak areas with aircraft quality 4140 Chrome Moly steel and utilized TIG welded construction for maximum durability. These control arms feature high quality QA1 spherical rod ends for a smooth and quiet operation. The Teflon lined rod ends prevent metal to metal contact, eliminating unwanted noise. The on-car adjustability of our Ultimate Arms makes it easy to make pinion angle adjustments, whether in the garage or at the track. With UMI's unique Chrome Moly on-car adjuster, you can quickly lengthen or shorten the control arm length with just two jam nuts. Pinion angle adjustments are essential for improving track 60-foot times, increasing traction, and reducing wheel hop. The bind-free operation of our rod ends makes them a great upgrade for both track and auto cross driven cars. Trust only the best-QA1 for long lasting performance.
UMI’s Ultimate adjustable rear upper control arms feature 4140 Chrome Moly construction, QA1 Teflon-lined rod ends, and on-car adjustability for easy pinion angle tuning. They reduce wheel hop, improve traction, and are track-ready.
UMI Performance 78-96 GM B-Body Adjustable Upper Control Arms- Ultimate Arms
UMI Ultimate rear uppers: adjustable, durable, and precision-engineered.
High strength 4140 Chrome Moly heat treated 1.000" solid adjuster
CNC machined 0.250" mild steel upper control arm mounting points
Alloy steel, heat treated, hard chrome plated rod ends
Made from aircraft quality 4140 Chrome Moly steel
Supplied with high quality QA1 spherical rod ends
Ultimate "on car" adjustable upper control arms
Teflon/Kevlar self lubricating race in rod ends
Pinion angle adjustments for track performance
Suitable for track and auto cross driven cars
On-car adjustability for ease of adjustment
Bind free operation for smooth performance
UMI- Rod End Upper Control Arm
4140 Chrome Moly tube adaptors
TIG welded construction
Upper Control Arms
