UMI PERFORMANCE

UMI Performance 78-96 GM B-Body Adjustable Upper Control Arms- Roto-Joint

$319.99

SKU: U01C 3628-R

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Description

Part #: 3628-R

UMI's Roto-Joint adjustable rear upper control arms are a reliable upgrade for your street or pro-touring car. These upper control arms are suitable for various driving conditions, whether it be on the street, strip, or carving corners. The premium spherical joint minimizes suspension deflection for improved handling, easier pinion angle tuning, and reduced wheel hop. The on-car adjustable design allows for easy adjustments while the control arms remain securely bolted to the vehicle. The heavy-duty construction of these control arms, featuring " thick CNC laser cut mounting pads and a combination of TIG and MIG welding, ensures strength and durability. The UMI designed Roto-Joints and chromoly adjuster provide ultimate performance. These bolt-in replacements are designed to fit all rear end housings and can be installed in 1-2 hours. Upgrade your vehicle with UMI's ultimate control arms and experience improved launch and handling capabilities.

UMI's Roto-Joint adjustable rear upper control arms improve handling, reduce wheel hop, and simplify pinion angle tuning. Built with CNC-cut pads, TIG/MIG welds, and chromoly adjusters, they install in 1-2 hours for street or track use.

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

BrandUMI PERFORMANCE
Part NumberU01C 3628-R

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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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