Leaf Spring - 2 in Lowering - Multi-Leaf - Steel - Black Paint - GM F-Body 1967-69 - Pair

Lowering Leaf Spring

Leaf springs do much more than simply supporting the weight of the vehicle. They are responsible for locating the axle, setting pinion angle, and controlling rearend movement. This makes them a critical part of the rear suspension. BMR's leaf springs give a superior option to stock leaf springs that sag, rust, and do little to control axle wrap and wheel hop as they get older. The SP057 feature a 2-inch drop, three leaf's, and a 190 lb./in spring rate, which reduces body roll without increasing rear oversteer. This commonly happens with too much spring rate. BMR's spring design, combined with precise clamp locations give you less wheel hop and more axle control. This design reduces axle wrap, which causes the spring to load and unload. By eliminating this oscillation, wheel hop is minimized and traction is improved. Each spring comes with new bushings in the front and rear. Other companies make you buy rear bushings separately, but BMR includes them. The SP057 leaf springs also come with Teflon antifriction pads for smooth, quiet travel through the spring's range of motion, which further reduces NVH. BMR designed the SP057s for street performance, drag race, and handling applications. Lowering springs are not only a great way to add an aggressive look to your 1st-Gen F-body, but they also improve the handling capabilities at the same time. By adding BMR's 2-inch drop leaf springs, you will lower the rear center of gravity and reduce body roll, which improves handling. New bushings greatly reduce the deflection seen in old worn out bushings. New rubber bushings in the front give you a smooth quiet ride, and the polyurethane rear bushings improve handling. To complete the install, you can reuse your original hardware, or purchase new hardware from BMR (RH015), which includes new U-bolts, polyurethane spring pads, stainless steel shackles. Combine with BMR front lowering springs for a level, aggressive stance with huge improvements in handling and performance.

Additional Information

The SP057 leaf springs also come with Teflon antifriction pads for smooth, quiet travel through the spring's range of motion, which further reduces NVH.

Part Type

Leaf Spring Lowering Kit

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.

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Product Details

Product Downloads

#	Document Type	Download
1.	Application Guide

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Lowering Spring, Leaf, Rear, Black, 2 in. Drop, 190 lbs./in. Spring Rate, Chevy, Pontiac, Pair

Responsible for locating the axle, setting pinion angle, and controlling rear-end movement, leaf springs are a critical part of the rear suspension. BMR Suspension lowering leaf springs are superior to stock leaf springs that sag, rust, and do little to control axle wrap and wheel hop as they get older. BMR's spring design, combined with precise clamp locations, give you less wheel hop and more axle control. Their design reduces axle wrap that causes the spring to load and unload. By eliminating this oscillation, wheel hop is minimized and traction is improved.

BMR lowering leaf springs are engineered for street performance, drag race, and handling applications. Not only a great way to add an aggressive look, they also improve handling by lowering the rear center of gravity and reducing body roll. New rubber bushings in the front give you a smooth, quiet ride, and polyurethane rear bushings greatly reduce deflection. They also come with PTFE antifriction pads for smooth, quiet travel throughout the spring's range of motion, which further reduces noise, vibration, and harshness.

Combine BMR lowering leaf springs with BMR front lowering springs for a level, aggressive stance with huge improvements in handling and performance.