im trying to replace my 10 bolt non-posi rear with a 10-12 bolt posi rear or replace just the guts,my 468 will just peel the tire ,im trying to find a article or some info so i dont buy a rear-end or guts that wont fit into the housing ,any help would be appreciated

Try doing a search on here. I just rebuilt my 12 bolt and converted it to posi. Wealth of info on here, and great people.

Do an advance search in transmissions and drivelines with the user name of big gear head. That should get the info you need.