I don't have a posi in my Dana 70 rear. I ran the Vin past the Dealership and, open/standard rearend. I bought the truck from the lower 48. I'm not getting the traction to go, here in Alaska. I'm hoping someone pulled out there Powerloc and replaced it with somthing else and has one sitting around. I thought I had one from another DTR member. He promised to sell me his, and he hasn't responded back for the last month. Sorry for carrying on.

Dana 70U 32 spline 3:55 gears.

 

check ebay

 

I have a PowerTrax No-Slip unit in mine. I always tell people its in between a locker and a limited slip.
The PowerTrax lockrite is the full blown locker (used to have them in my Jeep).
The No-Slip unit isnt as noisey as the lockrite and its road manners are much better.