jack up the car , put stands under the fram & diff , cut the old U bolts off , you do not want to reuse them , unbolt the rear shackles & pry them out of the rear frame & spring eye . Undo the 4 9/16 bolts that hold the front hanger in place & remove the springs from the car , , undo the large front cross bolt , hopefully the bolt is not siezed intot eh front spring eye bushing , you may need to heat the bolt to get it out or worse cut or grind the head off the bolt to get the spring out of the hanger , you may need to replace the bolt with a grade 8 fine thread bolt , reverse the proceedure to assemble