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UMI Performance 4036-R Rear Upper Control Arms with Roto-Joint Technology

(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)

Part of: UMI Performance Upper Control Arms with Roto-Joint Technology

Other options in this family: UMI Performance 4044-R UMI Performance 3036-R UMI Performance 4036-B

Manufacturer

Picture for manufacturer UMI Performance

Part Number

4036-R
5 reviews
Sale Price

$217.48

1 left at this price

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Usually delivered within 2 days

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Product Details

The UMI Performance 4036-R rear upper control arms are engineered to deliver superior handling and performance for street and track applications. Built with precision CNC-machined components and UMI's innovative Roto-Joint technology, these control arms eliminate suspension bind while maintaining excellent ride quality.

Key Features:

  • Constructed from 1.500" x 0.120" DOM mild steel tubing for exceptional strength
  • CNC-machined mounting plates from 0.250" thick mild steel
  • Pre-installed spherical Roto-Joints provide 28 degrees of unrestricted movement
  • Greaseable delrin race design absorbs shock and road noise for quiet operation
  • Direct bolt-on replacement using OEM hardware
  • Durable powder coat finish for corrosion resistance
  • Shipped fully assembled and ready to install
  • Includes spanner wrench for Roto-Joint adjustment and maintenance

Roto-Joint Technology:

UMI's patented Roto-Joint combines the precision of a spherical rod end with the comfort of a traditional bushing. The 4140 chromoly hard chrome-plated spherical ball rotates within a precision-machined delrin race, allowing free suspension articulation without deflection. This design minimizes wheel hop, improves cornering grip, and ensures consistent performance during aggressive driving while remaining 100% streetable.

Adjustable and Rebuildable:

The Roto-Joint is fully adjustable and rebuildable for long-term durability. As the delrin race wears over time, use the included spanner wrench to tighten the adjusting ring and restore proper tension. The delrin race can be completely replaced if needed, making these control arms a low-maintenance, long-lasting upgrade.

These control arms are ideal for enthusiasts seeking improved handling, reduced wheel hop, and better track consistency without sacrificing daily drivability. The combination of robust construction, precision engineering, and UMI's proven Roto-Joint technology makes the 4036-R an excellent suspension upgrade.

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

Tubular

Notes

Features a Roto-Joint.

Quantity

Sold as a pair.

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