Specifications
- Brand
- UMI Performance
- Part #
- 403133-B
- UPC
- 403133-B

UMI Performance 64-72 GM A-Body Tubular Upper & Lower Front A-Arm Kit - Black
$1479.67
UMI Performance 64-72 GM A-Body Tubular Upper & Lower Front A-Arm Kit - Black. Improves handling and steering feel for classic muscle cars.
Key Features
- Fits 1964-1972 GM A-Body vehicles including Buick Skylark, Chevrolet Chevelle, Oldsmobile Cutlass, and Pontiac GTO.
- Includes both upper and lower tubular control arms, pre-assembled with ball joints and bushings.
- Lower arms use greaseable polyurethane bushings and spring isolators for improved ride and handling.
- Upper arms feature UMI-designed Delrin bushings and billet CrMo cross shafts for precise steering.
- Relocated upper ball joint mount increases caster for better steering feel and stability.
- Tubular construction with TIG welded critical areas offers 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
Product Details
This UMI Performance A-arm kit gives you a complete set of fabricated tubular upper and lower front control arms, ready to bolt onto your 1964-1972 GM A-Body vehicle. You'll receive both the upper and lower arms, pre-assembled with premium ball joints, polyurethane spring isolators, and polyurethane or Delrin bushings. It also includes a hardware kit with Grade 8 bolts, washers, and nylock nuts to replace your old fasteners. This kit is designed to significantly improve your classic car's performance, making it feel more responsive and modern on the street, at the drag strip, or on an autocross course.
The lower control arms feature a strong tubular construction with greaseable polyurethane bushings for precise handling and a smooth ride, along with polyurethane spring isolators. The ball joint mount is angled slightly to provide extra clearance for larger wheels and tires, especially on lowered vehicles. The upper control arms use UMI-designed Delrin bushings for low deflection and are built with billet CrMo cross shafts. They also have a relocated mounting pad that allows for increased caster without needing excessive shims, which helps improve steering feel and stability. Both sets of arms are jig-built for accuracy and TIG welded in critical areas for added strength and a clean appearance. The durable black powder coat finish protects against the elements.
This kit is designed to work with factory spindles and is compatible with factory springs, lowering springs, and coil-over kits like the popular QA1 setups. UMI Performance includes recommended alignment specifications and detailed installation instructions to help ensure a proper setup. This kit is manufactured in Philipsburg, PA, USA.
Specifications
- Brand
- UMI Performance
- Manufacturer Part #
- 403133-B
- UPC
- 403133-B
Frequently Asked Questions
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UMI Performance 64-72 GM A-Body Tubular Upper & Lower Front A-Arm Kit - Black
