The 22-1221 springs will fit your vehicle which is a 3 leaf spring. The following would be a list of the parts that you would need to replace the springs: U-bolts - 5-0995K, Shackles - E831-22, End bolts and nuts - C580412, SLN1011, C916412, SLN912, Timbren Kit GMRCK25S that what we recommend to take the place of the original bump stops.