P.S. JFI
If you ask for just the ring and pinion, its likely they will say they don't have it. You usually have to buy the whole axel assy. You can ask them to only ship you the third member, but then you wouldn't have the two spare CV's.
When you need new CV boots get the ones from Independant 4x4, They REALLY ARE superior, and not much different in price. I leave the small end slightly loose using only a Small zip-tie so it can slide a little bit, but still keep water out and grease in. High angles tear the other kind up.