I make the spacers out of 2 inch black pipe 12 in for lower 9 inch for upper, a short maybe 1 to 2 inch spacer for the outer side the arm does not easily set on the press and a 3/4 in long piece of angle for the small area on the lowers to keep the bushing ends of the lower control from collapsing on itself. If, after a couple of attempts the bushing does not come out (to avoid distorting the arm) I just torch it out, first burn the rubber out then the outer sleeve should be fairly easy to heat, collapse it and usually it will be out within 20 to thirty minutes. If the arms are distorted enough from all the mistreatment trying to get the bushings out without spacers (or from prior attempts) you may want to consider new replacements from CPP, about 250 a pair but they come complete with new ball joints, bushings and cross arms, either painted or powder coated, seems to depend, then all you need to do is install them, which with lowers can be another interesting tale when compressing the spring. Good Luck