UMI Performance Front Lower A-Arms - Coilover Only - Competition - Black (1978-1988 G-Body / 1982-2003 S10) - 3057-1-B
Maximize your vehicle's handling and suspension geometry with the UMI Performance 3057-1 Competition Front Lower A-Arms designed exclusively for coilover setups in black (3057-1-B). Battle-tested on the iconic UMI Green Machine and engineered for hardcore racing applications like Pro-Touring, road racing, auto-x, and street corner carving, these arms combine superior strength with lightweight, bind-free performance.
Featuring a relocated ball joint cup that delivers up to 10 degrees of caster when paired with UMI 3056 upper a-arms, this setup optimizes roll center, lowers your center of gravity, and drops ride height by 1/2". The integrated 3/4" taller Howe ball joint and removable double shear shock mount make trackside spring and shock changes possible in minutes without disconnecting the ball joints.
Features
- Constructed from heavy-duty 1-¼" and 1-½â USA DOM tubing with CNC laser-cut components
- Delivers up to 10 degrees caster potential when combined with UMI 3056 upper a-arms
- Includes 3/4" taller Howe ball joint to optimize roll center, lower center of gravity, and drop ride height by 1/2"
- Removable double shear shock mount allows quick spring and shock changes at the track without removing the spindle
- Accepts aftermarket shock/spring combinations
- Adjustable aluminum steering stop limits steering lock to prevent tire and wheel damage
- Smooth-travel, UMI-machined Delrin bushings for bind-free operation
- Double shear swivel sway bar mounts and hardware compatible with UMI 3035 and most factory-style eyelet sway bars
- Saves 3.2 lbs per set compared to stock stamped a-arms
- Durable black powder-coated finish
- Designed, tested, manufactured, and raced in Philipsburg, PA, USA
Specifications
- SKU / Part Number: 3057-1-B
- Manufacturer: UMI Performance
- Vehicle Fitment: 1978-1988 GM G-Body / 1982"2003 S10 & S15 (2WD)
- Control Arm Style: Tubular (Competition / Coilover Only)
- Material: Mild Steel DOM Tubing / Delrin Bushings
- Finish: Black Powder Coat
- Direct Bolt-On: Yes (Coilover application)
- UOM: Pair
- Hardware: Not Included
What's in the Box
- 1 x Pair of Competition Front Lower A-Arms - Coilover Only (Black)
- Pre-Installed 3/4" Taller Howe Ball Joints
- Removable Double Shear Shock Mounts & Delrin Bushings
- Adjustable Steering Stops & Swivel Sway Bar Mounts
Fitment
Buick:
- 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
Chevrolet:
- 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
- 1982 Chevrolet S-10 2WD
- 1983 Chevrolet S-10 2WD
- 1984 Chevrolet S-10 2WD
- 1985 Chevrolet S-10 2WD
- 1986 Chevrolet S-10 2WD
- 1987 Chevrolet S-10 2WD
- 1988 Chevrolet S-10 2WD
- 1989 Chevrolet S-10 2WD
- 1990 Chevrolet S-10 2WD
- 1991 Chevrolet S-10 2WD
- 1992 Chevrolet S-10 2WD
- 1993 Chevrolet S-10 2WD
- 1994 Chevrolet S-10 2WD
- 1995 Chevrolet S-10 2WD
- 1996 Chevrolet S-10 2WD
- 1997 Chevrolet S-10 2WD
- 1998 Chevrolet S-10 2WD
- 1999 Chevrolet S-10 2WD
- 2000 Chevrolet S-10 2WD
- 2001 Chevrolet S-10 2WD
- 2002 Chevrolet S-10 2WD
- 2003 Chevrolet S-10 2WD
- 1983 Chevrolet S10 Blazer 2WD
- 1984 Chevrolet S10 Blazer 2WD
- 1985 Chevrolet S10 Blazer 2WD
- 1986 Chevrolet S10 Blazer 2WD
- 1987 Chevrolet S10 Blazer 2WD
- 1988 Chevrolet S10 Blazer 2WD
- 1989 Chevrolet S10 Blazer 2WD
- 1990 Chevrolet S10 Blazer 2WD
- 1991 Chevrolet S10 Blazer 2WD
- 1992 Chevrolet S10 Blazer 2WD
- 1993 Chevrolet S10 Blazer 2WD
- 1994 Chevrolet S10 Blazer 2WD
GMC:
- 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
- 1982 GMC S15 2WD
- 1983 GMC S15 2WD
- 1984 GMC S15 2WD
- 1985 GMC S15 2WD
- 1986 GMC S15 2WD
- 1987 GMC S15 2WD
- 1988 GMC S15 2WD
- 1989 GMC S15 2WD
- 1990 GMC S15 2WD
- 1991 GMC Sonoma 2WD
- 1992 GMC Sonoma 2WD
- 1993 GMC Sonoma 2WD
- 1994 GMC Sonoma 2WD
- 1995 GMC Sonoma 2WD
- 1996 GMC Sonoma 2WD
- 1997 GMC Sonoma 2WD
- 1998 GMC Sonoma 2WD
- 1999 GMC Sonoma 2WD
- 2000 GMC Sonoma 2WD
- 2001 GMC Sonoma 2WD
- 2002 GMC Sonoma 2WD
- 2003 GMC Sonoma 2WD
- 1983 GMC S15 Jimmy 2WD
- 1984 GMC S15 Jimmy 2WD
- 1985 GMC S15 Jimmy 2WD
- 1986 GMC S15 Jimmy 2WD
- 1987 GMC S15 Jimmy 2WD
- 1988 GMC S15 Jimmy 2WD
- 1989 GMC S15 Jimmy 2WD
- 1990 GMC S15 Jimmy 2WD
- 1991 GMC S15 Jimmy 2WD
Oldsmobile:
- 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
Pontiac:
- 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
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
