What is the main benefit of these boxed control arms?

These boxed control arms are designed to minimize suspension deflection. This leads to a more responsive feel, reduced wheel hop during acceleration, and improved overall handling for your vehicle.

Are the bushings included with these control arms?

Yes, these control arms come pre-assembled with greaseable polyurethane bushings. They also include zinc-plated sleeves for added durability and corrosion resistance.

Can I still mount my factory sway bar with these control arms?

Yes, the sway bar mounting holes are reinforced with TIG welded sleeves to allow for factory-style sway bar mounting. A shim is also included to ensure the sway bar sits at the correct factory height.

UMI Performance 73-77 GM A-Body Boxed Rear Lower Control Arms

Specifications

Brand: UMI Performance
Part #: 4215-R
UPC: 4215-R

UMI Performance 73-77 GM A-Body Boxed Rear Lower Control Arms

Name: UMI Performance 73-77 GM A-Body Boxed Rear Lower Control Arms
Brand: UMI Performance
Price: 337.27 USD
Availability: InStock

$337.27

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UMI Performance boxed rear lower control arms for 73-77 GM A-Body. Minimizes suspension deflection for crisp handling and less wheel hop.

Key Features

Fits 1973-1977 GM A-Body vehicles.
Constructed from 1/8" wall thickness mild steel rectangular tubing.
Boxed design minimizes suspension deflection for improved handling and reduced wheel hop.
Sway bar mounting holes are reinforced with TIG welded sleeves for factory-style mounting.
Includes a shim to set the sway bar at factory height.
Assembled with greaseable polyurethane bushings and zinc-plated sleeves.

⚠️ 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

Built from 1/8” wall thickness mild steel rectangular tubing, these UMI Performance boxed rear lower control arms are a solid addition for your 1973-1977 GM A-Body. They are designed to minimize suspension deflection, which helps reduce wheel hop and leads to a crisper handling feel, whether you're driving on the street, at the drag strip, or carving corners. These arms fit a range of popular vehicles including the Chevrolet El Camino, Oldsmobile Cutlass, and Pontiac LeMans.

The sway bar mounting holes are reinforced with TIG welded sleeves, allowing for factory-style sway bar mounting. A shim is included to ensure the sway bar sits at the correct factory height. These control arms are CNC machined for accuracy and assembled with greaseable polyurethane bushings that feature zinc-plated sleeves for durability. The heavy-duty bushing holders are MIG welded, and the entire assembly is finished with a durable powder coat for long-lasting protection. Installation is straightforward, typically taking about an hour with basic hand tools.