'66 Barracuda rear axle question

First, make sure it's the one you think it bad by using a stethoscope (sp) or wooden dowel up to your ear to verify it's the one you suspect. Those rear end noises can transmit around and fool the best of us. The 7 1/4 uses a single ball type axle bearing that is pressed onto the axle shaft along with a lock ring. Unless your deep socket is 3 feet long, you'll need a hydrolic press to do the job right. As previously described, you can do the job without opening the cover. In fact, if you jack up the bad side while leaving the other side on the ground and you won't even have to drain any oil out. Just make sure you chalk those front wheels!