Trail-Gear rear springs feature a full military wrap on the front and the 1/4 wrap on the rear. Spring rate is 235 lbs per inch. Leaf pack is 7 leaves plus a special torque leaf to reduce axle wrap. Springs are 56 5/8" long as measured along the top leaf. Pin to center of front mount is 27 1/2", pin to center of rear mount is 29 5/8". New poly bushings are included with springs. These springs are longer than stock and will require hanger relocation.