what OD bushing do you have in front? 1.5 or 2"? call energy suspension, they probably have a poly one that has the proper ID and OD....my '76 had 9/16" bolts, and it turns out the spring eye bushings for a square body chevy half ton worked perfect (1.5" OD, 9/16" ID) for the used 6 leaf HD springs I picked up from a member.