Suspension and Components Rear Suspension Components

UMI PERFORMANCE

UMI Performance 73-77 GM A-Body Upper & Lower Control Arm Kit

$469.99

SKU: U01C 421516-R

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

UMI's rear control arm kit is a durable and reliable upgrade for your 1973-1977 GM A-Body vehicle. It minimizes suspension deflection for improved handling and reduced wheel hop. The kit includes boxed lower control arms with reinforced sway bar mounting holes and upper fixed-length control arms with heavy-duty ¼” thick laser-cut mounting pads. It features greaseable polyurethane bushings and a durable powder coat finish.
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Part #: 421516-R

UMI's rear control arm kit is a bulletproof addition to your car. Suitable for street, strip or corner carving, this kit minimizes suspension deflection for a crisp handling setup and less wheel hop. The boxed lower control arms feature reinforced sway bar mounting holes to allow factory style sway bar mounting while the included shim allows sway bar to sit at factory height. The upper fixed length control arms feature a heavy duty " thick laser cut mounting pads designed to work on all rear end housings. UMI's control arms are CNC machined for accuracy and assembled with high quality greaseable polyurethane bushings.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandUMI PERFORMANCE
Part NumberU01C 421516-R

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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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