UMI Performance 64-72 A-Body Double Adjustable Lower Control Arms- w/ Roto-Joints

$543.99 CAD

UMI Performance SKU: umi4043-B

Earn [points_amount] when you buy this item.

4043-B

UMI’s double adjustable lower control arms utilize our Roto-Joint technology for a bind free performance, quiet ride quality, and also offer on car adjustment. The control arms can be adjusted longer or shorter moving the rear end back or forward to squeeze those larger tires in the fender wells. Adjustable control arms are also recommended for most aftermarket rear end installs to center the rear end and prevent tire rubbing. The control arms are fabricated from 1-1/2″ drawn over mandrel tubing with TIG welded chrome moly threaded tube adapters for the utmost in strength and performance. The threaded ends feature left and right hand threads for easy on car adjustments, simply loosen the jam nuts and turn the wrench to make adjustments. Both control arms feature the correct provisions for adding a stock or aftermarket sway bar. Sway bar holes are reinforced with a 0.120″ wall thickness steel sleeve that TIG welded and sanded into place. This control arm set features Roto-Joints on both sides of the control arms. This is designed for maximum performance and suspension travel. The installed Roto-Joint is a pivot ball lined with a greaseable delrin race designed to offer 28 degrees of total unrestricted movement, more than adequate for a bind free, low friction operation. The Roto-Joint design improves performance over the factory rubber and aftermarket polyurethane bushings by allowing the suspension to articulate correctly, and provide precision handling. The installed UMI Roto-Joint allows rear end free movement when high handling, auto cross or road race is a concern while still being a 100% streetable setup. The installed delrin race, which lines the spherical ball, absorbs shock and road noise for a quiet and smooth operation but also works excellent as a solid bushing drag race control arm. All Roto-Joints are greaseable and low maintenance making an excellent street setup for your cruiser or race car!

Features:

  • Constructed of 1.500″ DOM mild steel tubing
  • Spherical Roto-Joints installed for easy adjustments and bind free performance
  • Delrin race offers low deflection for improved traction
  • CNC machined 4140 chrome moly threaded tube adapters
  • On car adjustment using CNC machined left and right hand threads
  • Fully TIG welded for superior strength
  • Shipped fully assembled and ready to install
  • Uses OEM hardware
  • Brilliant and durable powder coat finish

More about Roto-Joint Technology….. UMI’s Roto-Joint, short for Rotational Joint, allows 28 degrees of total rotation and unrestricted movement throughout the vehicles suspension. The Roto-Joint is designed to work like a spherical rod end while maintaining streetable qualities of a softer bushing. The Roto-Joint is designed to articulate and prevent suspension bind, and since the installed delrin race does not deflect like softer bushings, there is an improvement in traction and a significant reduction in wheel hop. The construction of the Roto-Joint features a 4140 chrome moly, hard chrome plated spherical ball which rotates in a delrin race. The 4140 chrome moly material and hard chrome plating are designed for extensive wear resistance against hard driving and accumulated miles. The spherical ball rotates in the CNC machined delrin bushing, which is contoured for the spherical ball to allow unrestricted movement as the ball rotates. Delrin is the bushing material of choice due to its high resistance against wear, great tensile strength, and ability to maintain its physical properties. The housing of the Roto-Joint features 4140 chrome moly threads, and a CNC machined bushing holder TIG welded together for the utmost in strength and durability. The UMI Roto-Joint is adjustable and 100% rebuildable. This means as the delrin race wears the adjuster ring can be tightened using the optional spanner wrench to apply tension to the ball. If the delrin race would ever wear completely it can be replaced easily.

Spanner Wrench- This spanner wrench is used for adjusting and disassembling Roto-Joints used in all UMI Performance products. Over time if the delrin race inside the Roto-Joint would wear the spanner wrench is used to tighten the adjusting ring applying more pressure to the delrin inside. The spanner wrench is also used to disassemble the Roto-Joint for cleaning, inspection and rebuilding.

MAKE MODEL YEAR
Make Model Year
Buick GS 1970
Buick GS 1971
Buick GS 1972
Buick GS 350 1968
Buick GS 350 1969
Buick GS 400 1968
Buick GS 400 1969
Buick GS 455 1970
Buick GS 455 1971
Buick GS 455 1972
Buick Gran Sport 1965
Buick Gran Sport 1966
Buick Gran Sport 1967
Buick Skylark 1964
Buick Skylark 1965
Buick Skylark 1966
Buick Skylark 1967
Buick Skylark 1968
Buick Skylark 1969
Buick Skylark 1970
Buick Skylark 1971
Buick Skylark 1972
Buick Special 1964
Buick Special 1965
Buick Special 1966
Buick Special 1967
Buick Special 1968
Buick Special 1969
Buick Sportwagon 1964
Buick Sportwagon 1965
Buick Sportwagon 1966
Buick Sportwagon 1967
Buick Sportwagon 1968
Buick Sportwagon 1969
Buick Sportwagon 1970
Buick Sportwagon 1971
Buick Sportwagon 1972
Chevrolet Chevelle 1964
Chevrolet Chevelle 1965
Chevrolet Chevelle 1966
Chevrolet Chevelle 1967
Chevrolet Chevelle 1968
Chevrolet Chevelle 1969
Chevrolet Chevelle 1970
Chevrolet Chevelle 1971
Chevrolet Chevelle 1972
Chevrolet El Camino 1964
Chevrolet El Camino 1965
Chevrolet El Camino 1966
Chevrolet El Camino 1967
Chevrolet El Camino 1968
Chevrolet El Camino 1969
Chevrolet El Camino 1970
Chevrolet El Camino 1971
Chevrolet El Camino 1972
Chevrolet Malibu 1964
Chevrolet Malibu 1965
Chevrolet Malibu 1966
Chevrolet Malibu 1967
Chevrolet Monte Carlo 1970
Chevrolet Monte Carlo 1971
Chevrolet Monte Carlo 1972
GMC Sprint 1971
GMC Sprint 1972
Pontiac GTO 1964
Pontiac GTO 1965
Pontiac GTO 1966
Pontiac GTO 1967
Pontiac GTO 1968
Pontiac GTO 1969
Pontiac GTO 1970
Pontiac GTO 1971
Pontiac GTO 1972
Pontiac Grand Prix 1969
Pontiac Grand Prix 1970
Pontiac Grand Prix 1971
Pontiac Grand Prix 1972
Pontiac Lemans 1964
Pontiac Lemans 1965
Pontiac Lemans 1966
Pontiac Lemans 1967
Pontiac Lemans 1968
Pontiac Lemans 1969
Pontiac Lemans 1970
Pontiac Lemans 1971
Pontiac Lemans 1972
Pontiac Tempest 1964
Pontiac Tempest 1965
Pontiac Tempest 1966
Pontiac Tempest 1967
Pontiac Tempest 1968
Pontiac Tempest 1969
Pontiac Tempest 1970

This website does not show live stock.

If the product is in stock we ship same/next day.

If a product needs to be ordered in the typical wait time is 1-2 weeks.

Shipping times vary depending if the part is in stock at our warehouse and which shipping option is chosen at checkout.

Please contact us for an accurate ETA and availability.