I called this outfit awhile back asking about the 10 bolt posi rear axle assembly, the lady I spoke to said I need to talk to the boss who was not there and does not return phone calls.
This axle assy is the perfect setup if you plan on installing a 3speed od trans in your AD.
Good Luck on getting info from these folks.
Rustnut

There is not a tool made that if you don't try hard enough you can't break!
1952 3100 261 T5 3.08 Gov Locker