how to visually ID rear diff
Posting Guru
Joined: Sep 1999
Posts: 2,297
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From: Indiana
how to visually ID rear diff
I would like to know how to visually I D my rear differential in my truck. I've been told its a Dana 70. But I'm not sure. Info I have on rear ends say the Dana 70 has a 10.50" ring gear. Is there a way to tell without pulling the rear cover off? Thanks. Also I can't find anything stamped on the housing, such as a 60 or 70.
Posting Guru
Joined: Sep 1999
Posts: 2,297
Likes: 1
From: Indiana
how to visually ID rear diff
Chris, thanks for the info. I looked it up and yes I do have the Dana 70 rear end. I sort of thought I did as the rear end is very large and the truck has a heavy rated GVW package (8700 lbs) it also has the 9/16" wheel studs on it. I think its like a 1 ton - 3/4 ton pickup as it is a non catalyst engine, it says that on the valve cover decal & the core support decal. Also no "unleaded fuel only" written under the fuel gauge on the dash or gas cap doors. Its an 82 and I think this was still when you could play with the GVWR packages some and get the non catalytic converter truck. The Y-pipe is solid clear back to where the muffler starts under the bed(no welded in splices to get rid of the converter). Well thanks again!
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