Question on Lower Ball Joints for Front Discs

the bump acts as a steering stop. these days some are mfgr'd with them and some without

with the lower ball joint, they all physically bolt up to the LCA but the 73~76 is specific in that the bolts are bigger that secure the joint to the spindle.

the 73~76 joint is also designed slightly different, so depending on what tie rods you're using you may need to shorten or lengthen.

some dedicated cheapskates will drill the balljoints to match the spindle bolts, which is something i'd only consider as a last ditch effort. new joints aren't that expensive and are readily available.

spindles are available new and show up frequently in the classifieds here.