I'm trying to replace my universals. The cups are frozen solid into the yokes (the whole shaft is pretty rusty). Any advice? I'm trying to avoid beating too hard on them - I don't want to bend anything. I tried some liquid wrench and heating a little with a propane torch. They won't budge. I've got the liquid wrench soaking. If they don't budge after that I'll try heating them more thoroughly. Jegs has some nice pretty aluminum drive shafts for $325 (ouch). Does anybody own one of them?