Product images and videos 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.
Suspension and Components› Front Suspension Components
UMI PERFORMANCE
UMI Performance 64-77 GM A-Body Rear Control Arm Bolt Upgrade Kit
SKU: U01C 4001
Easy — 1–2 hours
Overview
All hardware is zinc coated to prevent corrosion and enhance appearance. This kit is compatible with UMI A-Arms, factory A-Arms, and various other brands.
Show original supplier description
Part #: 4001
Don't reuse your old rusty bolts when installing aftermarket control arms when you can replace them with new ones. Our kit includes all new hardware for installing either upper or lower rear control arms in you General Motors vehicle. Supplied is (4) 1/2" grade 8 bolts, (4) 1/2" nylon lock nuts and washers. Complete kit is zinc plated.
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
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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Available on iOS & Android
Specifications
| Brand | UMI PERFORMANCE |
| Part Number | U01C 4001 |
Videos
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INSTALLING FRONT UMI UPPER AND LOWER CONTROL ARMS WITH COILOVERS
UMI Performance Rear Control Arm Options and Comparison
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64-72 GM A-Body Chevelle GTO Cutlass Coilover Conversion by UMI Performance
UMI DOUBLE ADJUSTABLE LOWER TRAILING ARMS FOR THE WIN!!! | 71 CHEVELLE
1970 chevelle ss gets new UMI lower control arms and QA1 sway bar
UMI Performance - Bolt In Chassis Stiffening - for A-Body's
About MOTORMIA
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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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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.
Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.
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