I'm looking at a 74 century, it is missing rear differential, question is, which differential will interchange/ fit in there. Are they the same as our 70-72 or do I need to go to a full size body (LeSabre/centurion). I am wanting to get into this body style along with my72, but haven't had much to do with the 73-75 style yet. Thanks for any input in advance.
yep, 1973-1977 Monte Carlo, El camino, chevelle, laguna, Regal, Grand Prix, Cutlass etc will all interchange directly... Also remember there are 9.5" and 11" Drum break options in this era too. Good luck, Jim