UMI Performance 65-67 GM A-Body Adjustable Upper Control Arms- Poly Bushings

If you're working on a 1965-1967 GM A-Body like a Chevelle, GTO, or Skylark and want to dial in your rear suspension, these adjustable upper control arms from UMI Performance are a solid option. They're designed to let you precisely adjust your rear end's pinion angle, which is key for improving traction, reducing wheel hop, and getting better performance on the track or street. Getting this angle right makes a big difference in how your car hooks up and handles.

What sets these apart is the on-car adjustability. That means you can make changes to the pinion angle without having to pull the control arm off the vehicle, saving you a lot of time and hassle during setup. UMI builds these with strong components, including CNC machined steel mounting plates, 4140 chrome moly threaded tube adapters, and a 1.000-inch solid adjuster made from the same tough material. They also come with grease-able polyurethane bushings that are fluted for better grease distribution, along with new bushings for the rear end housing, all finished with a durable gloss powder coat to resist corrosion and look good.