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UMI Performance 1.250" Front & 1" Rear Solid Sway Bar Kit for Select GM 1978-2003 (303534-R)

$419.99

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UMI Performance 1.250" Front & 1" Rear Solid Sway Bar Kit for Select GM 1978-2003 (303534-R)

$419.99

$419.99

Fits select 1978-2003 GM vehicles, including Buick Regal, Chevrolet El Camino, Malibu, Monte Carlo, GMC Sonoma, Oldsmobile Cutlass, and Pontiac Grand Prix/Bonneville.

The UMI Performance solid sway bar kit is engineered to significantly reduce body roll and understeer while improving cornering balance for a more precise driving experience. This kit replaces the factory 7/8" front bar with a more rigid 1.250" CNC-bent solid bar. The 1" solid rear bar is heat-treated to maintain its memory and performance over time, ensuring it doesn't lose its spring rate like cold-bent alternatives.

Constructed from high-strength 4140 chromoly steel, both bars are formed as one-piece units for maximum structural integrity. This kit is finished in a durable bright red powder coat for long-lasting corrosion resistance and comes complete with all necessary installation hardware, including greaseable bushings and Grade 8 mounting bolts.

  • Manufacturer Part Number: 303534-R
  • Front Sway Bar: 1.250" solid 4140 chromoly steel, CNC bent
  • Rear Sway Bar: 1" solid 4140 chromoly steel, heat-treated
  • Finish: Durable bright red powder coat
  • Includes greaseable front sway bar bushings and high-quality end links
  • Supplied with Grade 8 mounting hardware for the rear bar
  • Direct bolt-on replacement for factory suspension components
🔧 Fitment & Compatibility
Year Make Model Submodel
1978-1987 Buick Regal Base
1982-1983 Buick Regal Estate Wagon
1987 Buick Regal GNX
1984-1987 Buick Regal Grand National
1978-1987 Buick Regal Limited
1982 Buick Regal Limited Turbo
1978-1982 Buick Regal Sport
1983-1986 Buick Regal T-Type
1978-1987 Chevrolet El Camino Base
1978,1981-1986 Chevrolet El Camino Conquista
1979-1981 Chevrolet El Camino Royal Knight
1978-1987 Chevrolet El Camino SS
1978-1981 Chevrolet Malibu Base
1978-1983 Chevrolet Malibu Classic
1978-1980 Chevrolet Malibu Classic Estate
1978-1981 Chevrolet Malibu Classic Landau
1979-1980 Chevrolet Malibu Classic Sport
1979-1980 Chevrolet Malibu Estate
1979 Chevrolet Malibu Landau
1979 Chevrolet Malibu Police
1979-1980 Chevrolet Malibu Sport
1979,1981-1988 Chevrolet Monte Carlo Base
1983 Chevrolet Monte Carlo CL
1978-1981 Chevrolet Monte Carlo Landau
1986-1988 Chevrolet Monte Carlo LS
1978,1980 Chevrolet Monte Carlo Sport
1983-1988 Chevrolet Monte Carlo SS
1991-1993 GMC Sonoma Base
1992 GMC Sonoma GT
1994-2003 GMC Sonoma SL
1991-2001 GMC Sonoma SLE
1993-2003 GMC Sonoma SLS
1980 Oldsmobile Cutlass Base
1980-1981 Oldsmobile Cutlass Brougham
1980-1981 Oldsmobile Cutlass LS
1978-1979 Oldsmobile Cutlass Vista Cruiser
1979 Oldsmobile Cutlass Vista Cruiser Brougham
1978-1984 Oldsmobile Cutlass Calais Base
1983-1984 Oldsmobile Cutlass Calais Hurst
1982-1983,1988 Oldsmobile Cutlass Ciera Base
1982-1988 Oldsmobile Cutlass Ciera Brougham
1984-1985 Oldsmobile Cutlass Ciera Cruiser LS
1983,1985-1986 Oldsmobile Cutlass Ciera ES
1985-1987 Oldsmobile Cutlass Ciera GT
1985-1986 Oldsmobile Cutlass Ciera Holiday
1988 Oldsmobile Cutlass Ciera International
1982-1988 Oldsmobile Cutlass Ciera LS
1986-1988 Oldsmobile Cutlass Ciera S
1986-1988 Oldsmobile Cutlass Ciera SL
1980-1983 Oldsmobile Cutlass Cruiser Base
1980-1981 Oldsmobile Cutlass Cruiser Brougham
1978-1979,1985-1986 Oldsmobile Cutlass Salon 442
1978-1980,1985-1987 Oldsmobile Cutlass Salon Base
1978-1980 Oldsmobile Cutlass Salon Brougham
1979 Oldsmobile Cutlass Salon Hurst
1987 Oldsmobile Cutlass Supreme 442
1978-1988 Oldsmobile Cutlass Supreme Base
1978-1987 Oldsmobile Cutlass Supreme Brougham
1988 Oldsmobile Cutlass Supreme Classic
1988 Oldsmobile Cutlass Supreme Classic Brougham
1988 Oldsmobile Cutlass Supreme Indy 500 Pace Car
1988 Oldsmobile Cutlass Supreme International
1981,1985 Oldsmobile Cutlass Supreme LS
1988 Oldsmobile Cutlass Supreme SL
1982-1986 Pontiac Bonneville Base
1982-1986 Pontiac Bonneville Brougham
1984-1986 Pontiac Bonneville LE
1978-1987 Pontiac Grand Prix Base
1981-1987 Pontiac Grand Prix Brougham
1984-1987 Pontiac Grand Prix LE
1978-1983 Pontiac Grand Prix LJ
1978-1980 Pontiac Grand Prix SJ

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