How do the double adjustable control arms work?

The double adjustable design uses right and left-hand threads on the control arms. This allows you to make precise adjustments to your rear suspension alignment while the arms are still installed on the vehicle, making tuning easier.

What is the benefit of the QA1 rod ends over standard bushings?

The QA1 Endura Series Teflon-lined spherical rod ends eliminate the rear-end bind often found with rubber or polyurethane bushings. This results in bind-free operation, which is crucial for maximizing handling performance and preventing suspension binding during hard cornering or high-torque situations.

UMI Performance 64-72 GM A-Body Double Adjustable Lower Control Arms

Specifications

Brand: UMI Performance
Part #: 4027-B
UPC: 4027-B

UMI Performance 64-72 GM A-Body Double Adjustable Lower Control Arms

Name: UMI Performance 64-72 GM A-Body Double Adjustable Lower Control Arms
Brand: UMI Performance
Price: 402.55 USD
Availability: InStock

$402.55

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UMI Performance double adjustable lower control arms for 1964-1972 GM A-Body. Get precise rear suspension tuning for performance driving.

Key Features

Fits 1964-1972 GM A-Body vehicles including Chevrolet Chevelle, Buick Skylark, and Oldsmobile Cutlass.
Constructed of 0.120" x 1.500" DOM Steel Tubing for strength.
Features TIG welded construction for a stronger, more durable weld.
Includes QA1 3/4" Hard Chrome Plated, Teflon/Kevlar Self Lubricating Race Rod Ends for bind-free operation.
Double adjustable design allows for quick on-car alignment changes.
Reinforced sway bar holes accommodate stock or aftermarket sway bars.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

When you're looking to get the most out of your classic GM A-Body's rear suspension, this set of double adjustable lower control arms from UMI Performance is a solid choice. You'll get a pair of control arms, constructed from strong 0.120" x 1.500" mild steel DOM tubing. They feature TIG welded fabrication for a stronger joint than MIG welding, and include QA1 Endura Series Teflon-lined spherical rod ends. These rod ends are designed to eliminate the rear-end bind that can happen with rubber or polyurethane bushings, allowing for bind-free operation during high-performance driving and cornering. This setup is also excellent for drag racing, built to handle high amounts of torque and horsepower.

The control arms are designed for quick, on-car adjustability using the right and left-hand threads. They also include provisions for a stock or aftermarket sway bar, with reinforced sway bar holes featuring a TIG-welded steel sleeve. The tube adapters are CNC machined from 4140 Chrome Moly for improved strength and thread durability, an area where some competitors cut costs by using mild steel. These control arms come with a durable powder coat finish and utilize CNC machined 6061 aluminum step bushings with zinc-plated steel sleeves. Installation is straightforward, as they are a bolt-on part that uses OEM hardware and requires no drilling.