Probably the hardest part of this job,is getting the spindles off ,after removing the 6 bolts--you might have to use a sharp chisel wedged between it and rge backing plate to get it loose,and use a block of wood & hammer on it to wiggle it free--once its off taking out the axle and replacing the u-joint is the same procedure as doing one in a driveshaft basically..be sure to look at the needle bearing in the spindle and see if its good and needs greasing..good idea to put a new seal on it if it needs one too..