UMI Performance 65-66 GM B-Body Adjustable Upper Control/Trailing Arm

UMI Performance is known for making well-built suspension components for classic GM vehicles. If you're working on your 1965-1970 Chevrolet Bel Air, Biscayne, Caprice, or Impala and need to replace worn-out rear upper control arms, this adjustable unit is a solid option. It's designed to directly replace your factory arms, offering a way to dial in your suspension for better performance and handling.

What sets this control arm apart is its on-car adjustability. This means you can easily make changes to your pinion angle without having to remove the arm from the vehicle, which is a big time saver. The adjustment is made using a heat-treated 4140 chrome-moly adjuster with left and right-hand threads, making it straightforward to set up. This adjustability can also help eliminate the need for shims during installation. It’s built with TIG welded construction for strength and comes with grease-able Energy Suspension polyurethane bushings for smooth operation and durability.

This control arm is sold individually, so be sure to check if your specific vehicle came with one or two upper control arms from the factory. Many six-cylinder and small-block models used a 3-link setup, while big-block vehicles typically had a 4-link system. The durable powder coat finish will also help protect it from the elements.