UMI PERFORMANCE
UMI Performance 65-67 GM A-Body Adjustable Upper Control Arms- Poly Bushings
SKU: U01C 402600-B
Description
Part #: 402600-B
UMI Performance adjustable upper control arms are designed to optimize your vehicle's pinion angle for superior performance, precise handling, and increased traction. These control arms are made of high-quality materials, including CNC machined 0.250" steel mounting plates, 4140 chrome moly threaded tube adapters, and a 4140 chrome moly 1.000" solid adjuster. One unique feature of UMI Performance's adjustable upper control arms is the on-car adjuster, which allows for easy adjustments without the need to remove or unbolt the control arm from the vehicle. Adjusting your pinion angle is essential for improving your track times, enhancing traction, and minimizing wheel hop. These control arms also come with grease-able fluted polyurethane bushings, new rear end housing bushings, and a durable gloss powder coat finish for long-lasting performance and reliability. Upgrade your vehicle with UMI Performance adjustable upper control arms for optimal performance and improved handling.
UMI Performance adjustable upper control arms feature on-car adjusters, CNC machined steel, 4140 chrome moly components, and polyurethane bushings. They improve pinion angle, traction, and handling while reducing wheel hop.
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Fitment
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Specifications
| Brand | UMI PERFORMANCE |
| Part Number | U01C 402600-B |
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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