BMR 2" Rear Lowering Leaf Spring - Black (SP057) - 1967-1981 F-Body / 1968-1974 X-Body
Refresh your classic muscle car's rear suspension while achieving a modern, low-slung look with the BMR Suspension Rear Lowering Leaf Spring (SP057). Over time, factory leaf springs naturally lose their arch, rust, and fail to adequately control damaging axle wrap and wheel hop under acceleration. This 2-inch lowering leaf spring features a performance-driven three-leaf architecture that drastically improves chassis stability and cornering composure. It is engineered as a versatile, multi-purpose suspension upgrade suitable for high-performance street driving, weekend drag racing, and classic autocross applications.
Every SP057 leaf spring measures 2.5 inches wide with 4 inches of free arch, delivering a calibrated 190 lb/in spring rate that balances flat-cornering support with a smooth, firm ride quality. To handle severe stress and resist metal fatigue, the leaf packs are shot-peened for premium structural integrity. This leaf spring kit arrives ready to install with premium, new rubber bushings pressed into the front eyelets to dampen road vibrations, alongside durable polyurethane bushings for the rear to maintain precise axle alignment. Finished in a high-durability black coating to guard against corrosion, this upgrade restores both structural confidence and aggressive street appeal to your classic GM platform.
IMPORTANT FITMENT & COMPATIBILITY NOTES:
- Traction Bar Note: BMR’s SP057 leaf springs are NOT compatible with Slide-A-Link traction bars.
- Hardware/Shackles: Reuses factory or standard equivalent replacement leaf spring shackles and mounting hardware.
- Installation: Estimated installation time is approximately 2-3 hours.
Features
- Fits 1967-1981 GM F-Body and 1968-1974 GM X-Body platforms
- Delivers a functional 2-inch rear lowering drop for an aggressive stance
- Performance-tuned 190 lb/in spring rate optimizes traction and cornering
- Heavy-duty three-leaf design measuring 2.5 inches wide with 4 inches of free arch
- Shot-peened steel construction eliminates surface defects and prevents premature sag
- Significantly decreases body roll, axle wrap, and launching wheel hop
- Includes new high-quality rubber (front) and durable polyurethane (rear) bushings
- Resilient black finish protects against harsh track and road conditions
- Proudly designed and manufactured in the U.S.A.
Fitment
Chevrolet Camaro & Pontiac Firebird (1st Gen F-Body):
- 1967 Chevrolet Camaro / Pontiac Firebird
- 1968 Chevrolet Camaro / Pontiac Firebird
- 1969 Chevrolet Camaro / Pontiac Firebird
Chevrolet Camaro & Pontiac Firebird / Trans Am (2nd Gen F-Body):
- 1970 Chevrolet Camaro / Pontiac Firebird / Trans Am
- 1971 Chevrolet Camaro / Pontiac Firebird / Trans Am
- 1972 Chevrolet Camaro / Pontiac Firebird / Trans Am
- 1973 Chevrolet Camaro / Pontiac Firebird / Trans Am
- 1974 Chevrolet Camaro / Pontiac Firebird / Trans Am
- 1975 Chevrolet Camaro / Pontiac Firebird / Trans Am
- 1976 Chevrolet Camaro / Pontiac Firebird / Trans Am
- 1977 Chevrolet Camaro / Pontiac Firebird / Trans Am
- 1978 Chevrolet Camaro / Pontiac Firebird / Trans Am
- 1979 Chevrolet Camaro / Pontiac Firebird / Trans Am
- 1980 Chevrolet Camaro / Pontiac Firebird / Trans Am
- 1981 Chevrolet Camaro / Pontiac Firebird / Trans Am
Chevrolet Nova & GM Siblings (X-Body):
- 1968 Chevrolet Nova
- 1969 Chevrolet Nova
- 1970 Chevrolet Nova
- 1971 Chevrolet Nova / Pontiac Ventura
- 1972 Chevrolet Nova / Pontiac Ventura
- 1973 Chevrolet Nova / Pontiac Ventura / Buick Apollo / Oldsmobile Omega
- 1974 Chevrolet Nova / Pontiac Ventura / Buick Apollo / Oldsmobile Omega
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