Specifications
- Brand
- UMI Performance
- Part #
- 3621-B

UMI 91-96 GM B-Body Boxed Extended Length Lower Control Arms - Black
$359.03
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UMI Performance boxed extended length lower control arms in black. Optimizes wheelbase for improved wheel appearance.
Key Features
- Fits 1978-1996 GM B-Body vehicles including Buick LeSabre, Buick Roadmaster, Chevrolet Caprice, Chevrolet Impala, Pontiac Bonneville, and Pontiac Catalina.
- Boxed construction using 0.120" wall thickness rectangular mild steel tubing for strength.
- Features CNC machined DOM steel bushing holders for precision tolerances.
- Includes modern formulation, greaseable polyurethane bushings for improved performance and maintenance.
- Extended length by +5/8" to optimize wheelbase and wheel appearance.
- Finished in a durable gloss black powder coat for protection and aesthetics.
⚠️ 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
Product Details
UMI Performance is known for making well-built suspension components for American muscle cars. These boxed extended length lower control arms are designed for 1978-1996 GM B-Body vehicles, like the Chevrolet Caprice or Buick Roadmaster. They help to optimize your vehicle's wheelbase, which can improve the look of the wheels within the wheel openings. This is a popular upgrade for those looking to fine-tune their car's stance.
Built from strong 0.120" wall thickness rectangular mild steel tubing, these control arms are MIG welded and feature CNC machined DOM steel bushing holders for accuracy. They come equipped with modern formulation, greaseable polyurethane bushings, which are a solid choice for durability and performance. The extended length is +5/8", and UMI offers matching extended upper arms like part numbers 3619, 3620, or 3624 if you're looking to complete the setup. The gloss black powder coat finish not only looks good but also adds a layer of protection.
Specifications
- Brand
- UMI Performance
- Manufacturer Part #
- 3621-B
Frequently Asked Questions
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UMI 91-96 GM B-Body Boxed Extended Length Lower Control Arms - Black
