UMI Performance Rear Lower Control Arms Boxed - Black (1978-1996 GM B-Body) (3615-B)
Eliminate rear wheel hop, reduce suspension deflection, and dramatically improve traction and cornering stability with the UMI Performance Boxed Rear Lower Control Arms (3615-B). Engineered as a direct bolt-in replacement for flexible factory stamped steel arms on 1978-1996 GM B-Body vehicles—including the Chevrolet Impala SS, Caprice, Buick Roadmaster, and LeSabre—these heavy-duty control arms provide the strength needed for street cruising, drag racing, and track performance.
Constructed from heavy-wall 0.120" rectangular mild steel tubing with precision CNC-machined DOM steel bushing holders, these arms are fully MIG-welded and feature fully enclosed boxed end caps to keep road dirt, moisture, and debris out of the arm structure. Pre-assembled with low-deflection, greaseable polyurethane bushings and zerk fittings, they drastically outperform soft OEM rubber bushings for firmer power transfer without sacrificing ride quality. Designed to mount factory or aftermarket sway bars through reinforced mounting holes, they arrive finished in a durable gloss black powder coat and install in about an hour using factory hardware.
Features
- Direct bolt-in replacement for flex-prone factory stamped steel lower control arms
- Eliminates wheel-hop during hard acceleration and improves cornering consistency
- Built from heavy-duty 0.120" wall thickness rectangular steel tubing for high strength
- MIG-welded DOM steel bushing sleeves with sealed end caps to prevent internal debris build-up
- Pre-assembled with low-deflection greaseable polyurethane bushings and zerk fittings
- Reinforced sway bar mounting holes accept stock or aftermarket rear sway bars
- Durable gloss black powder coat finish protects against rust, corrosion, and road grime
- 100% designed, tested, and manufactured in the USA
Specifications
- SKU: 3615-B
- Manufacturer: UMI Performance
- Country of Origin: USA
- Material: 0.120" Wall Rectangular Mild Steel Tubing
- Bushing Type: Greaseable Polyurethane w/ Zerk Fittings
- Control Arm Style: Boxed Non-Adjustable
- Finish: Gloss Black Powder Coat
- Weight: N/A
- Dimensions: N/A
- Unit of Measure: Pair (Driver & Passenger Side)
- Installation Time: 1 Hour (Direct Bolt-On)
- Hardware: Uses OEM Bolts
Fitment Notes
- Position: Rear Lower Control Arms (Pair).
- Fits 1978-1996 GM B-Body platforms (Chevrolet Impala SS, Caprice, Buick Roadmaster, LeSabre, Pontiac Bonneville, Catalina).
- Direct bolt-on design using OEM frame hardware.
- Compatible with factory standard-length control arm geometry.
Fitment
1991 Buick Roadmaster
1992 Buick Roadmaster
1993 Buick Roadmaster
1994 Buick Roadmaster
1995 Buick Roadmaster
1996 Buick Roadmaster
1978 Buick LeSabre
1979 Buick LeSabre
1980 Buick LeSabre
1981 Buick LeSabre
1982 Buick LeSabre
1983 Buick LeSabre
1984 Buick LeSabre
1985 Buick LeSabre
1978 Chevrolet Caprice
1979 Chevrolet Caprice
1980 Chevrolet Caprice
1981 Chevrolet Caprice
1982 Chevrolet Caprice
1983 Chevrolet Caprice
1984 Chevrolet Caprice
1985 Chevrolet Caprice
1986 Chevrolet Caprice
1987 Chevrolet Caprice
1988 Chevrolet Caprice
1989 Chevrolet Caprice
1990 Chevrolet Caprice
1991 Chevrolet Caprice
1992 Chevrolet Caprice
1993 Chevrolet Caprice
1994 Chevrolet Caprice
1995 Chevrolet Caprice
1996 Chevrolet Caprice
1994 Chevrolet Impala SS
1995 Chevrolet Impala SS
1996 Chevrolet Impala SS
1977 Pontiac Bonneville
1978 Pontiac Bonneville
1979 Pontiac Bonneville
1980 Pontiac Bonneville
1981 Pontiac Bonneville
1977 Pontiac Catalina
1978 Pontiac Catalina
1979 Pontiac Catalina
1980 Pontiac Catalina
1981 Pontiac Catalina
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
