BMR 1.5" Rear Performance Lowering Springs - Red (SP037R) - 1978-1987 GM G-Body
Refresh your classic GM G-Body's rear suspension and achieve a modern, low-slung stance with the Rear Performance Lowering Springs (SP037R) from BMR Suspension. Over time, original factory springs naturally sag, rust, and lose their ability to manage vehicle dynamics. Designed specifically for street performance and cruisers, these premium rear coils drop the back of your vehicle 1.5 inches to eliminate unsightly rear-end rake. By lowering the center of gravity, this modification reduces body roll and increases driver control through aggressive corners without sacrificing a smooth, compliant ride.
Every BMR rear spring is cold-wound on an advanced CNC coiling machine using high-tensile chrome silicon spring wire, ensuring complete left-to-right uniformity across your rear axle. BMR implements a strict production regimen to guarantee a lifetime of sag-free service: each spring is compressed solid twice at the factory to establish its permanent height, stress-relieved at 750°F, and shot-peened to eliminate residual surface tensile forces. Featuring an expertly fine-tuned dual-rate design, these coils deliver firm support to keep the chassis level during cornering while maintaining a comfortable, road-smoothing ride on ordinary pavement. Shielded in a durable red powder coat, every individual spring undergoes meticulous computer load testing and is backed by a lifetime warranty against spring sag.
IMPORTANT FITMENT & COMPATIBILITY NOTES:
- Chassis Limitations: Fits 1978-1987 GM G-Body configurations. These springs are NOT compatible with Station Wagon models due to weight and structural differences.
- Installation: Straightforward rear installation with an estimated shop time of approximately 1 hour.
Features
- Fits 1978-1987 GM G-Body models (Excludes Station Wagons)
- Provides a functional 1.5-inch rear drop height for a sleek profile
- Advanced dual-rate rear spring design balances flat cornering with ride comfort
- Manufactured from premium chrome silicon high-tensile spring wire
- Cold-wound on precise CNC machinery for flawless side-to-side uniformity
- Pre-compressed solid twice at the factory to guarantee zero future sag
- Stress-relieved at 750°F and shot-peened for ultimate fatigue resistance
- 100% individually computer-tested for exact load and height metrics
- Significantly decreases side-to-side body roll and rear-end sway
- Durable red powder coat finish protects against corrosion and debris
- Backed by BMR's robust lifetime warranty against spring sag
- Proudly designed and manufactured in the U.S.A.
Fitment
Buick Regal / Grand National / T-Type (G-Body):
- 1978 Buick Regal
- 1979 Buick Regal
- 1980 Buick Regal
- 1981 Buick Regal
- 1982 Buick Regal / Grand National
- 1983 Buick Regal / T-Type
- 1984 Buick Regal / Grand National / T-Type
- 1985 Buick Regal / Grand National / T-Type
- 1986 Buick Regal / Grand National / T-Type
- 1987 Buick Regal / Grand National / GNX / T-Type
Chevrolet El Camino / Monte Carlo (G-Body):
- 1978 Chevrolet El Camino / Monte Carlo
- 1979 Chevrolet El Camino / Monte Carlo
- 1980 Chevrolet El Camino / Monte Carlo
- 1981 Chevrolet El Camino / Monte Carlo
- 1982 Chevrolet El Camino / Monte Carlo
- 1983 Chevrolet El Camino / Monte Carlo / SS
- 1984 Chevrolet El Camino / Monte Carlo / SS
- 1985 Chevrolet El Camino / Monte Carlo / SS
- 1986 Chevrolet El Camino / Monte Carlo / SS
- 1987 Chevrolet El Camino / Monte Carlo / SS
Oldsmobile Cutlass / 442 (G-Body):
- 1978 Oldsmobile Cutlass
- 1979 Oldsmobile Cutlass
- 1980 Oldsmobile Cutlass
- 1981 Oldsmobile Cutlass Supreme / Calais
- 1982 Oldsmobile Cutlass Supreme / Calais / Hurst/Olds
- 1983 Oldsmobile Cutlass Supreme / Hurst/Olds
- 1984 Oldsmobile Cutlass Supreme / Hurst/Olds
- 1985 Oldsmobile Cutlass Supreme / 442
- 1986 Oldsmobile Cutlass Supreme / 442
- 1987 Oldsmobile Cutlass Supreme / 442
Pontiac Grand Prix / Bonneville (G-Body):
- 1978 Pontiac Grand Prix
- 1979 Pontiac Grand Prix
- 1980 Pontiac Grand Prix
- 1981 Pontiac Grand Prix
- 1982 Pontiac Grand Prix / Bonneville
- 1983 Pontiac Grand Prix / Bonneville
- 1984 Pontiac Grand Prix / Bonneville
- 1985 Pontiac Grand Prix / Bonneville
- 1986 Pontiac Grand Prix / Bonneville / 2+2 Grand Prix
- 1987 Pontiac Grand Prix / Bonneville
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