Rusty's RK-300SP-XJ kit comes complete with front coils, Rusty's offers two front coil spring rates, 150 lbs and a 180lbs, the 180lbs springs give the same amount of lift but will give the needed support with the use of a big bumper, winch or a snow plow. The Rusty's 3.5 inch rear spring have 5 leafs for a great ride and superior flex, OEM style rubber bushings don't transmit vibrations much like poly. Grade eight U-bolts fasten the springs to the axle. A rear brake line extension bracket gives you piece of mind that even off road you won't be over extending the brake line. Our Rusty's hydro shocks give you a great ride and keeps the tires on the ground.