Ridetech

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Product Specification:

SKU:RID11227298

UPC: 840123502117

Weight: 1.4 lb

Inventory: 6

Type: Suspension Arms & Components

Description

Vehicle Fitment

• 1964-1969 Buick Skylark, Special, Sportwagon, Gran Sport
• 1970-1972 Buick GS, GS 400, GS 455, Skylark, Sportwagon
• 1978-1987 Buick Regal
• 1964-1972 Chevrolet Chevelle, El Camino, Malibu
• 1970-1972 Chevrolet Monte Carlo
• 1978-1988 Chevrolet Monte Carlo, El Camino, Malibu
• 1964-1972 Oldsmobile 442, Cutlass
• 1978-1988 Oldsmobile Cutlass, Cutlass Calais, Cutlass Cruiser

Fitment Notes

• May not fit some 1964 model year cars - the R-Joint housing O.D. is 1.85 in., while many 1964 vehicles used a 1.375 in. housing; verify your housing diameter before ordering
• Presses directly into the axle housing - no special tool required; a version that includes an installation/removal tool (Ridetech 11227299) is also available
• Sold as a pair (rear upper arm application)
• Also compatible with Pontiac GM A-Body/G-Body applications (GTO, LeMans) sharing this same rear upper arm design - confirm your specific model against Ridetech's fitment guide

Features

• Revolutionary R-Joint rod end design combines low friction movement, full-range articulation, lateral stability, and quiet operation in one bearing
• Articulates in 3 planes: 360-degree axial rotation and 30 degrees of total lateral rotation
• Precision-machined 17-4 investment cast stainless steel housing with rolled threads for long-term durability
• Polished stainless ball paired with an RTX10 composite cage delivers consistent, low-friction movement
• Special RTX10 composite cage requires no lubrication - ever
• Self-cleaning design remains unaffected by water, grit, dirt, or debris
• Spring-loaded closure keeps the mechanism tight and rattle-free for life
• Outperforms all-metal bushings (compromised by dirt/moisture), rubber (poor lateral stability), and polyurethane (friction spikes and noise)

Specifications

• Position: Rear Upper Arm
• Housing Material: 17-4 Investment Cast Stainless Steel
• Ball Material: Polished Stainless Steel
• Cage Material: RTX10 Composite (Delrin AF)
• Bushing Color: Natural
• Articulation: 360° Axial Rotation, 30° Total Lateral Rotation
• Hole I.D.: 5/8 in.
• Housing O.D.: 1.85 in.
• Installation: Presses into Housing (Tool Not Included)
• Quantity: Sold as a Pair

Included Components

• 2x R-Joint Rear Upper Arm Bushing
• Bearing Spacers for Bracket Spacing

Product Description

The Ridetech 11227298 is a pair of rear upper arm R-Joint bushings built for 1964-1977 GM A-Body and 1978-1988 GM G-Body vehicles, replacing worn factory bushings in the rear axle housing. R-Joints represent the next step in bushing and rod end technology, combining the best qualities of low-friction movement, lateral stability, full-range articulation, and quiet operation into a single, purpose-built bearing.

Each R-Joint features a precision-machined 17-4 investment cast stainless steel housing with rolled threads, paired with a polished stainless ball and RTX10 composite cage for consistent, low-friction movement that requires zero lubrication over its service life. The self-cleaning design shrugs off water, grit, dirt, and debris, while a spring-loaded closure keeps everything tight and rattle-free - permanently.

Compared to the alternatives, R-Joints outlast all-metal bushings (which degrade from dirt and moisture), offer better lateral stability than rubber, and eliminate the friction spikes and noise common with polyurethane bushings. Whether your A-Body or G-Body is a daily driver, autocross car, or dedicated track build, these bushings deliver a genuine upgrade in durability and feel. This kit presses directly into the housing - for a version that includes the installation tool, see Ridetech 11227299.