What is the main benefit of installing these lift bars?

These lift bars are designed to improve rear-end traction and reduce wheel hop, especially during hard launches. They work by loading the chassis to push the rear wheels down harder into the pavement.

Does this kit include everything needed for installation?

The kit includes the lift bars, mounting brackets, greaseable polyurethane bushings, sway bar provisions, and Grade 8 mounting hardware. Detailed installation instructions are also provided. However, as this is a weld-in kit, you will need welding equipment and expertise.

Can I still install a rear sway bar with these lift bars?

Yes, the lift bars are designed with provisions to add a stock or aftermarket sway bar. The sway bar holes are reinforced with steel sleeves and positioned to keep the sway bar level with the rear end.

UMI Performance 64-72 GM A-Body Rear Lift Bar Set-Up-Weld-In

Specifications

Brand: UMI Performance
Part #: 4020-R
UPC: 4020-R

UMI Performance 64-72 GM A-Body Rear Lift Bar Set-Up-Weld-In

Name: UMI Performance 64-72 GM A-Body Rear Lift Bar Set-Up-Weld-In
Brand: UMI Performance
Price: 489.59 USD
Availability: InStock

$489.59

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UMI Performance weld-in rear lift bars for 64-72 GM A-Body. Improve traction and reduce wheel hop.

Key Features

Fits 1964-1972 GM A-Body vehicles including Chevrolet Chevelle, Oldsmobile Cutlass, and Pontiac GTO.
Replaces factory rear control arms to improve rear-end traction and reduce wheel hop.
Constructed from boxed mild steel tubing with 1/8" wall thickness and 3/16" thick mounting brackets.
Features greaseable polyurethane bushings to reduce deflection while remaining streetable.
Includes provisions for adding a stock or aftermarket sway bar with reinforced mounting holes.
Offers three adjustable mounting positions (2", 2-3/4", 3-1/4") to correct geometry on lowered vehicles.

⚠️ 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

UMI Performance is known for making well-built suspension components for classic muscle cars. If you're looking to get more out of your classic GM A-Body's rear suspension, especially for drag racing or spirited driving, their weld-in rear lift bar set-up is a solid option. These bars are designed to work with the torque of your axle to load the chassis, pushing the rear wheels down harder and improving your launch. This means better 60-foot times and less of that annoying wheel hop you might be experiencing.

Constructed from boxed mild steel tubing with 1/8" wall thickness and beefy 3/16" mounting brackets, these lift bars are built to handle the stress of hard launches. They feature greaseable polyurethane bushings that offer a good balance between reducing deflection for better performance and maintaining streetability. The kit also includes provisions for adding a stock or aftermarket sway bar, with reinforced, TIG-welded sleeves for the sway bar holes. The rear mounting brackets offer three different settings, allowing you to adjust the lift bar angle by 2", 2-3/4", or 3-1/4" to correct geometry on lowered vehicles and optimize your instant center.

This is a weld-in only kit, meaning the mounting brackets come bare metal ready for you to weld them onto your chassis. UMI includes all the necessary hardware and detailed installation instructions. For a bolt-in setup, you'd look at a different part number. Many owners of vehicles like the Chevrolet Chevelle, Oldsmobile Cutlass, and Pontiac GTO have found these bars make a notable difference in rear-end traction.