That is the reason I went with a 9" rear end.
About 30 min to remove it, about 1 hr to change ring and pinion, little paint on the ring gear, check preload and back lash. Put it back in and your ready to roll. Parts are cheap and tools are easy to get.
Jag & BMW rear ends, will break the bank and there is one guy who lives in Pango Pango who fabricates one special tool per year.
Good Luck
