Lowering Leaf Spring, Rear, 2 Inch DropLeaf 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 wheelhop as they get older. The SP057 feature a 2 inch drop, three leafs, and a 190 lb in spring rate,