What hardware is included with this A-arm kit?

This kit includes the UMI Performance P/N 4004 hardware kit. It contains 1/2" Grade 8 bolts, washers, and zinc-plated nylock nuts required for the installation of the upper and lower A-arms.

Can I use this kit with my lowered vehicle?

Yes, the lower A-arms are designed with an angled ball joint mount to accommodate lowered vehicles, and the upper arms allow for increased caster without excessive shims. However, UMI does not recommend using these with cargo coils or cars above stock height, as the bump stop may contact the cross brace.

What kind of finish does the A-arm kit have?

The A-arms are finished with a durable, glossy red or black powder coat. This finish is designed to protect the parts and maintain their appearance on street cars, drag cars, autocrossers, or Pro-Touring machines.

UMI Performance 64-72 GM A-Body Tubular Upper & Lower Front A-Arm Kit

Specifications

Brand: UMI Performance
Part #: 403133-R
UPC: 403133-R

UMI Performance 64-72 GM A-Body Tubular Upper & Lower Front A-Arm Kit

Name: UMI Performance 64-72 GM A-Body Tubular Upper & Lower Front A-Arm Kit
Brand: UMI Performance
Price: 1479.67 USD
Availability: InStock

$1479.67

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 1964-1972 GM A-Body. UMI Performance tubular upper & lower front A-arm kit improves handling with TIG welded DOM tubing and Delrin/polyurethane bushings.

Key Features

Fits 1964-1972 GM A-Body vehicles.
Includes both upper and lower tubular front A-arms.
Lower arms feature greaseable polyurethane bushings and spring isolators.
Upper arms use UMI-designed Delrin bushings and CrMo cross shafts.
Relocated upper ball joint mount increases caster for improved steering.
TIG welded DOM tubing construction for superior strength and a clean look.

⚠️ 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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Will this fit your vehicle?

Product Details

If you're looking to give your classic GM A-Body a significant handling upgrade, this complete tubular upper and lower front A-arm kit from UMI Performance is a solid choice. It replaces the original stamped steel arms with a much stronger, fabricated design that can make your car feel more like a modern muscle machine. This kit is designed to fit a wide range of popular vehicles, including the Chevrolet Chevelle, Pontiac GTO, and Buick Skylark, among many others from 1964 through 1972.

The lower A-arms feature robust tubular construction with polyurethane spring isolators for a comfortable ride and greaseable polyurethane bushings that help provide precise handling and smooth suspension movement. The ball joint mount has been slightly angled to work better with lowered vehicles and offers improved wheel and tire clearance. On the upper A-arms, you'll find UMI's own Delrin bushings, known for their low deflection and smooth operation, paired with UMI-built CrMo cross shafts. These upper arms also have a relocated mounting pad that allows for increased caster without needing excessive shims, which is key for better steering feel and tire wear.

Both sets of arms are jig-built for accuracy, ensuring a perfect fit, and come pre-assembled with premium ball joints. Critical welds are TIG welded for maximum strength and a clean appearance. UMI Performance includes recommended alignment specifications and detailed installation instructions with each kit, and they are shipped fully assembled and ready to bolt on. You can choose between a durable glossy red or black powder coat finish to protect your investment and keep your performance parts looking great, whether your car is a street cruiser, drag car, or autocrosser. This kit is designed to work with factory springs, lowering springs, and popular coil-over kits.