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UMI Performance 4039-R Rear Upper Control Arms with Roto-Joints

(Pontiac GTO 1964-67, Grand Prix 1964-67, LeMans 1964-67, Tempest 1964-67; Chevrolet Chevelle 1964-67, El Camino 1964-67 + 4 more models)

Manufacturer

Picture for manufacturer UMI Performance

Part Number

4039-R
4 reviews
Sale Price

$279.70

Estimated ship date Saturday, November 28

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

UMI Performance's Roto-Joint adjustable rear upper control arms are engineered for street, strip, and road course applications. Designed and manufactured in Philipsburg, Pennsylvania, these heavy-duty control arms deliver exceptional strength and performance for muscle cars and pro-touring builds.

Key Features:

  • UMI-designed Roto-Joint spherical bearings minimize suspension deflection for crisp handling and reduced wheel hop
  • On-car adjustability using UMI's proprietary chromoly adjuster - no removal required for pinion angle tuning
  • 3/8-inch thick CNC laser-cut upper mounting pads for maximum strength
  • Chromoly (CrMo) threaded adapters provide superior thread strength and durability
  • Durable powder coat finish for long-lasting corrosion resistance
  • Precision TIG and MIG welded construction
  • Compatible with all rear end housings

These bulletproof control arms are direct bolt-in replacements that install in approximately 1-2 hours using basic hand tools. The premium spherical joints drastically reduce suspension bind and deflection, allowing for precise suspension geometry adjustments and improved traction. Whether you're launching at the strip or carving corners on a road course, UMI's Roto-Joint upper control arms deliver the performance and adjustability serious enthusiasts demand.

Products specifications

Fits

Pontiac GTO 1964-67, Grand Prix 1964-67, LeMans 1964-67, Tempest 1964-67; Chevrolet Chevelle 1964-67, El Camino 1964-67; Oldsmobile Cutlass 1964-67, 442 1964-67, Vista Cruiser 1964-67; Buick Skylark 1968-72, Special 1964-67

Ball Joint Included

No

Bushing Material

Spherical bearing/Delrin

Bushings Included

Yes

Control Arm Finish

Red powdercoated

Control Arm Style

Fully adjustable

Notes

Control arms have Roto-Joints in place of bushings.

Quantity

Sold as a pair.

Autoplicity simply had the best prices available and everything was in stock to be shipped.

Autoplicity leads the way ! Others take a lesson !! Great prices and excellent service !!!

Very pleasant, easy process. Hopefully part ships quickly as my car is out of service until the part arrives.

No problems ordering a leak down tester from Autoplicity which had the lowest price and reasonable shipping charges. The item was well packaged and I would buy from them again.

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