What is DOM steel tubing and why is it used here?

DOM stands for Drawn Over Mandrel. This manufacturing process creates a strong, seamless steel tubing with consistent wall thickness. It's used in these control arms for increased strength and rigidity compared to standard tubing, helping to reduce flex under load.

Do these control arms come with new hardware?

No, these control arms are designed as a direct bolt-on replacement and utilize your vehicle's original hardware for installation. This simplifies the process and ensures proper fitment.

How do I maintain the greaseable bushings?

The included polyurethane bushings have zerk fittings. You'll want to periodically inject grease into these fittings using a standard grease gun to keep the bushings properly lubricated, which extends their life and maintains performance.

UMI Performance 64-72 GM A-Body Tubular Lower Control Arms

Specifications

Brand: UMI Performance
Part #: 4015-R
UPC: 4015-R

UMI Performance 64-72 GM A-Body Tubular Lower Control Arms

Name: UMI Performance 64-72 GM A-Body Tubular Lower Control Arms
Brand: UMI Performance
Price: 250.23 USD
Availability: InStock

$250.23

On Backorder — Expected to ship by Apr 22, 2026

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

UMI Performance tubular rear lower control arms for 1964-1972 GM A-Body. DOM steel construction reduces wheel hop and improves cornering.

Key Features

Fits 1964-1972 GM A-Body vehicles including Buick Skylark, Chevrolet Chevelle, and Oldsmobile Cutlass.
Constructed from strong 1.500" OD x 0.120" DOM mild steel tubing.
Features fully TIG welded construction for superior strength and durability.
Includes greaseable Energy Suspension fluted polyurethane bushings with zerk fittings.
Reinforced sway bar holes are compatible with OEM and most aftermarket sway bars.
Easy bolt-on installation requires no drilling and uses OEM hardware.

⚠️ 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

Starting with 1.500" OD x 0.120" DOM steel tubing, these rear lower control arms from UMI Performance are built to handle more than the stock arms on your classic GM A-Body. If your car is a Buick Skylark, Chevrolet Chevelle, Oldsmobile Cutlass, or Pontiac LeMans from 1964 through 1972, these arms offer a solid upgrade over worn-out factory parts. They're designed to bolt right into place, using your original hardware, and help put more power to the ground by reducing wheel hop and improving how the car handles through turns.

The construction here is serious business. UMI uses CNC machining for precision, and every weld is TIG welded for maximum strength and rigidity. Inside, you'll find greaseable polyurethane bushings from Energy Suspension, complete with zerk fittings so you can keep them well-lubricated for a long life. They also feature reinforced sway bar mounting holes, which work with the factory sway bar and most aftermarket ones. A durable powder coat finish means they'll look good and resist corrosion for a long time.

Installation is straightforward, typically taking about an hour with basic tools, and requires no drilling. This is a popular upgrade for anyone looking to get better performance and a more solid feel from their classic GM rear suspension.