UMI Performance Rear Lower Control Arm Kit w/ Adjustable Upper - Red (1978-1988 GM G-Body) (301517-R)
Optimize pinion angle, set precise rear suspension geometry, and eliminate traction-robbing wheel hop with the UMI Performance Rear Lower Control Arm Kit featuring On-Car Adjustable Upper Control Arms (301517-R). Engineered specifically for 1978-1988 GM G-Body platforms—including the Buick Grand National/Regal, Chevrolet Monte Carlo, El Camino, Oldsmobile Cutlass, and Pontiac Grand Prix—this complete 4-piece kit upgrades soft factory stamped steel arms with heavy-duty tubular lowers and fully adjustable "Ultimate Arms" upper control arms.
Constructed from high-strength DOM steel tubing with TIG-welded fabrication, this package allows you to adjust rear pinion angle easily on the car using right- and left-hand threads without disconnecting the control arms. High-performance, greaseable polyurethane bushings significantly reduce axle deflection over weak OEM rubber bushings while maintaining exceptional ride quality for daily street driving or drag strip launches. Lower control arms feature integrated sway bar mounting holes compatible with stock and aftermarket rear sway bars. Finished in a vibrant red powder coat, this direct bolt-in kit installs easily using factory mounting hardware.
Features
- Complete 4-piece rear control arm kit featuring heavy-duty tubular lowers and "Ultimate Arms" adjustable uppers
- On-car upper adjustability allows fast, precise pinion angle tuning and rear axle alignment
- Replaces weak OEM stamped steel arms to eliminate wheel hop and traction loss under acceleration
- Constructed from heavy-duty DOM mild steel tubing with TIG-welded construction
- High-quality greaseable polyurethane bushings with built-in Zerk grease fittings for smooth articulation
- Reinforced sway bar mounting holes accommodate factory OEM and aftermarket rear sway bars
- Durable red powder coat finish for superior corrosion resistance and bold underbody styling
- Direct bolt-on replacement using OEM factory mounting hardware
- Includes detailed step-by-step installation instructions
Specifications
- SKU: 301517-R
- Manufacturer: UMI Performance
- Material: Heavy-Duty DOM Mild Steel Tubing
- Bushing Type: Greaseable High-Performance Polyurethane w/ Zerk Fittings
- Adjustability: Yes (On-Car Adjustable Upper Control Arms)
- Finish: Red Powder Coat
- Weight: 18 lbs
- Product Dimensions: 24" x 6" x 6"
- Hardware: Uses OEM Hardware (Not Included)
- Modification Required: None
Fitment Notes
- Position: Rear Upper and Rear Lower Control Arms (Complete 4-Piece Set).
- Fits 1978-1988 GM G-Body platforms (Buick Regal/Grand National, Chevrolet Monte Carlo, El Camino, Malibu, Oldsmobile Cutlass, Pontiac Grand Prix, Bonneville, GMC Caballero).
- Direct bolt-on replacement for factory upper and lower rear control arms.
Fitment
1978 Buick Regal
1979 Buick Regal
1980 Buick Regal
1981 Buick Regal
1982 Buick Regal
1983 Buick Regal
1984 Buick Regal
1985 Buick Regal
1986 Buick Regal
1987 Buick Regal
1978 Chevrolet El Camino
1979 Chevrolet El Camino
1980 Chevrolet El Camino
1981 Chevrolet El Camino
1982 Chevrolet El Camino
1983 Chevrolet El Camino
1984 Chevrolet El Camino
1985 Chevrolet El Camino
1986 Chevrolet El Camino
1987 Chevrolet El Camino
1978 Chevrolet Malibu
1979 Chevrolet Malibu
1980 Chevrolet Malibu
1981 Chevrolet Malibu
1982 Chevrolet Malibu
1983 Chevrolet Malibu
1978 Chevrolet Monte Carlo
1979 Chevrolet Monte Carlo
1980 Chevrolet Monte Carlo
1981 Chevrolet Monte Carlo
1982 Chevrolet Monte Carlo
1983 Chevrolet Monte Carlo
1984 Chevrolet Monte Carlo
1985 Chevrolet Monte Carlo
1986 Chevrolet Monte Carlo
1987 Chevrolet Monte Carlo
1988 Chevrolet Monte Carlo
1978 GMC Caballero
1979 GMC Caballero
1980 GMC Caballero
1981 GMC Caballero
1982 GMC Caballero
1983 GMC Caballero
1984 GMC Caballero
1985 GMC Caballero
1986 GMC Caballero
1987 GMC Caballero
1978 Oldsmobile Cutlass
1979 Oldsmobile Cutlass
1980 Oldsmobile Cutlass
1981 Oldsmobile Cutlass
1982 Oldsmobile Cutlass
1983 Oldsmobile Cutlass
1984 Oldsmobile Cutlass
1985 Oldsmobile Cutlass
1986 Oldsmobile Cutlass
1987 Oldsmobile Cutlass
1988 Oldsmobile Cutlass
1982 Pontiac Bonneville
1983 Pontiac Bonneville
1984 Pontiac Bonneville
1985 Pontiac Bonneville
1986 Pontiac Bonneville
1978 Pontiac Grand Prix
1979 Pontiac Grand Prix
1980 Pontiac Grand Prix
1981 Pontiac Grand Prix
1982 Pontiac Grand Prix
1983 Pontiac Grand Prix
1984 Pontiac Grand Prix
1985 Pontiac Grand Prix
1986 Pontiac Grand Prix
1987 Pontiac Grand Prix
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