# UMI Performance 68-72 A-Body Non Adjustable Upper Control Arms- w/ Roto-Joint 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 chromoly, hard chrome plated spherical ball which rotates in a delrin race. The 4140 chromoly 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 chromoly 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. This Part Fits: Year Make Model Submodel 1970,1972 Buick Skylark 350 1968-1972 Buick Skylark Base 1968-1972 Buick Skylark Custom 1964-1967 Buick Special Base 1964-1967 Buick Special Deluxe 1964-1967 Buick Sportwagon Base 1966 Buick Sportwagon Custom 1964-1967 Chevrolet Chevelle 300 1965-1967 Chevrolet Chevelle 300 Deluxe 1967 Chevrolet Chevelle Concours 1964-1967 Chevrolet Chevelle Malibu 1964-1965 Chevrolet Chevelle Malibu Super Sport 1967 Chevrolet Chevelle SS 396 1966 Chevrolet Chevelle Super Sport 396 1964-1967 Chevrolet El Camino Base 1964-1967 Oldsmobile 442 Base 1964-1967 Oldsmobile Cutlass Base 1964-1967 Oldsmobile Cutlass Holiday 1967 Oldsmobile Cutlass Turnpike Cruiser 1964-1967 Oldsmobile Vista Cruiser Base 1964-1967 Oldsmobile Vista Cruiser Custom 1964-1967 Pontiac Grand Prix Base 1964-1967 Pontiac GTO Base 1964-1967 Pontiac LeMans Base 1964-1967 Pontiac Tempest Base 1964-1967 Pontiac Tempest Custom 1964-1967 Pontiac Tempest Safari ## Details - **Price:** 340.11 CAD - **Vendor:** UMI Performance - **Type:** Control Arms ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 340.11 CAD | In stock | ## Images - Photo - Primary --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/umi-performance-68-72-a-body-non-adjustable-upper-control-arms-w-roto-joint) > Updated: 2026-07-01