UMI Performance 78-88 GM G-Body Spring/Shock Lowering Kit 1in Rear 250lb
Regular price
$1,804.88
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Ready to install and hit the road!
All parts come with the essentials you need for a smooth fit and clear instructions. From performance upgrades to custom styling, unbox and get your ride ready with confidence!
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UMI’s lowering package features four Viking double adjustable shocks, a hybrid front coil-over spring system with 250 lb front springs, and your choice of 1 or 2-inch UMI rear lowering springs. The 250 lb springs are 11" tall and intended exclusively for drag racing applications with significant vehicle weight reduction, providing excellent front-end lift and weight transfer for improved traction. The hybrid front coil-over system allows a 0–3" adjustable drop, while the rear springs offer 1" or 2" lowering options to fine-tune stance. Viking’s shocks provide 19 compression and 19 rebound settings, letting you dial in suspension performance for street, strip, or cornering with simple knob adjustments—no tools required. The bolt-in design eliminates the need for welding or a spring compressor for the front, and optional Spanner Wrench and Thrust Bearing Kits make height adjustments smoother. This setup is purpose-built for drag racing performance and is not recommended for street handling applications.
This Part Fits:
| 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 |
| 1981-1986 | GMC | Caballero | Amarillo |
| 1978-1987 | GMC | Caballero | Base |
| 1981 | GMC | Caballero | Conquista |
| 1978-1987 | GMC | Caballero | Diablo |
| 1978-1980 | GMC | Caballero | Laredo |
| 1981 | GMC | Caballero | Royal Knight |
| 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 |
