the best way ive found done over 50 sets, is take mopar bumber bolts 66-74 with the built in washer fits perfect size of shell, drop it in lca shell flush bolt toward t-bar hex. four tack welds then pump them right out with my otc ball joint pressed operated with impact gun. just did them in my 68 hemi charger left no marks on lca pocket, air chisel is kinda hacky, watch out for press it loads up lca flanges to much and might bent them