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$259.99
UMI 3039-R 78-88 G-Body 12-Bolt Swap Adj. Upper Arms, Roto, Red
UMI 3039-R 78-88 G-Body 12-Bolt Swap Adj. Upper Arms, Roto, Red

UMI 3039-R 78-88 G-Body 12-Bolt Swap Adj. Upper Arms, Roto, Red

Rear Upper Position, Fully Adjustable Control Arm Style, Steel

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UMI 3039-R 78-88 G-Body 12-Bolt Swap Adj. Upper Arms, Roto, Red
UMI 3039-R 78-88 G-Body 12-Bolt Swap Adj. Upper Arms, Roto, Red
UMI 3039-R 78-88 G-Body 12-Bolt Swap Adj. Upper Arms, Roto, Red
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UMI 3039-R 78-88 G-Body 12-Bolt Swap Adj. Upper Arms, Roto, Red
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We estimate this item will ship on or before October 2nd.
Part # 1853039R
$259.99
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Details

Position:
Rear Upper
Control Arm Style:
Fully Adjustable
Material Type:
Steel
Adjustable:
Yes
Bushing Material:
Spherical Bearing/Delrin
Ball Joint Included:
No
Bushing Included:
Yes
Hardware Included:
No
Finish:
Powder Coated
Color:
Red
MFG. Part #:
3039-R
Sold in Quantity:
Set

Info

UMI Performance’s 12-bolt swap control arms are designed to bolt a 1964-1972 GM A-Body 10-Bolt or 12-Bolt rear end into a 1978-1988 GM G-Body; this includes Monte Carlo, Malibu, El Camino, Regal, Grand National, Grand Prix and Cutlass. These upper control arms are built at the correct angle to attach to the G-Body chassis as well as the A-Body rear end “ears”. These upper control arms are a must any time this swap is being completed. Using the factory control arms will cause drastic rear end bind and incorrect driveline angle, this leads to traction lose, vibrations and unsafe handling. These control arms are supplied adjustable for easy on car adjustability to set correct pinion angle and allow adjustment for installation if needed. Adjustments are made using an aircraft quality 4140 chromoly heat treated adjuster and UMI spherical Roto-Joint’s. The Roto-Joint allows rear end free movement when high handling, auto cross or road race is a concern but also works excellent as a drag race item by eliminating rear end bind. Upper control arms feature TIG welded construction, 4140 chromoly tube adaptors to ensure thread durability and brilliant powder coat.

Features:

  • On car adjustable

  • Mounting plate CNC machined from 0.250” thick mild steel

  • 4140 heat treated chromoly adjuster

  • 4140 chromoly threaded tube adaptors

  • Spherical Roto-Joints installed

  • Shipped fully assembled and ready to install

  • Uses OEM hardware

  • Brilliant and durable powder coat finish

Charts

Installation Instructions (PDF)

Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 10 business days for UMI Performance to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.
Some parts are not legal for use in California or other states with similar laws/regulations

More Like This

Reviews

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Videos & Articles
  • Have a 1970-1994 GM A- or X-body in need of some new lower control arms? Take a look at what Speedway Motors' employee Steve L. has to say about our lower control arms!
  • Whether you are looking to change the look of your truck, get rid of your tired rusty springs, or upgrade the ride quality of your truck, Speedway Motors has you covered with stock height and lowered spring options.
  • In this Tech Tip, John responds to a customer question about tubular control arms.

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