diff ID tag question
Post Fiend
Joined: Mar 2002
Posts: 19,402
Likes: 38
From: Bonita Springs FL
You didn't post anything about the axle itself. We don't know if it's a dually axle, single, drums, discs, a Dana axle or a Sterling, we don't know if it's full floating or semi-floating, we don't know what year, model, or make of the truck it came from, or even how many lug nuts it has.
And the tag number is about 30% complete, making it outright impossible to ID the axle.
It's basically the same as me asking you - I have this thing in my garage. Can you tell me what it is and where I can find parts to fix it?
There are plenty of people in here that are very willing to help you, even if you don't know a driveshaft from a slip yoke. But we need information to help you - the more the better!
And the tag number is about 30% complete, making it outright impossible to ID the axle.
It's basically the same as me asking you - I have this thing in my garage. Can you tell me what it is and where I can find parts to fix it?
There are plenty of people in here that are very willing to help you, even if you don't know a driveshaft from a slip yoke. But we need information to help you - the more the better!
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Cargo Master
Joined: Sep 2004
Posts: 3,430
Likes: 2
From: NH
OK...
The axle is under a 90 F250 but the previous owner say he changed it to a 1 Ton axle. I haven't seen it but guessing its a single wheel and who knows what year it is because it was swapped in. Thats why I didn't state a year and as for being a dana or not that is what I was trying to figure out. In guessing its a 8 lug it can be just about any year from the 60's up to late 90's before thay changed the lug pattern on the 3/4+tons.
Is there any tell tail signes like number of bolts or special shape of diff cover to determine dana vs sterling vs other?? Kinda like a square tranny oil pan is a C4 and a L shaped one is a C6.
The axle is under a 90 F250 but the previous owner say he changed it to a 1 Ton axle. I haven't seen it but guessing its a single wheel and who knows what year it is because it was swapped in. Thats why I didn't state a year and as for being a dana or not that is what I was trying to figure out. In guessing its a 8 lug it can be just about any year from the 60's up to late 90's before thay changed the lug pattern on the 3/4+tons.
Is there any tell tail signes like number of bolts or special shape of diff cover to determine dana vs sterling vs other?? Kinda like a square tranny oil pan is a C4 and a L shaped one is a C6.
Post Fiend
Joined: Mar 2002
Posts: 19,402
Likes: 38
From: Bonita Springs FL
Yes, there is. First, there is no difference between a 3/4 ton axle and a 1 ton axle. Ford used the same rear axles for the most part. If it doesn't have 8 lugs, then it's not a 3/4 or a 1 ton axle. We'll assume that it does.
Look at the rear cover. If there is a fill plug on the cover, it's a Dana axle of some kind. No fill plug means it's a sterling 10.25" axle.
If it's a Dana, and if you can find a BOM number stamped into the axle, there are sites that will let you decode the axle and tell you the model, the year, and even the original gear ratio. It's usually of the form: XXXXXX-X or X-XXXXXX, can't remember which.
If you can't find the number, see if you can get some pictures of it. It's very likely either a Dana 60, 61, or 70. Dana 80's are hard to find and found in larger trucks.
There was a thread in this forum a while ago where the person posted pics of a Dana 60 and a Dana 70 and showed how to tell the difference between the two. A Dana 60 and a Dana 61 are virtually identical, but the 61 is harder to find parts for from what I understand.
Hope that helps!
Look at the rear cover. If there is a fill plug on the cover, it's a Dana axle of some kind. No fill plug means it's a sterling 10.25" axle.
If it's a Dana, and if you can find a BOM number stamped into the axle, there are sites that will let you decode the axle and tell you the model, the year, and even the original gear ratio. It's usually of the form: XXXXXX-X or X-XXXXXX, can't remember which.
If you can't find the number, see if you can get some pictures of it. It's very likely either a Dana 60, 61, or 70. Dana 80's are hard to find and found in larger trucks.
There was a thread in this forum a while ago where the person posted pics of a Dana 60 and a Dana 70 and showed how to tell the difference between the two. A Dana 60 and a Dana 61 are virtually identical, but the 61 is harder to find parts for from what I understand.
Hope that helps!
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Cargo Master
Joined: Sep 2004
Posts: 3,430
Likes: 2
From: NH
Yes it does. thank you very much.
and I am thinking I might have had a Dana61 on my 83 cause I needed an axle shaft for it and the onle one made new for it was like $800 and for racing application. Finaly got one after looking through(ok calling) a few salvage yards.
and I am thinking I might have had a Dana61 on my 83 cause I needed an axle shaft for it and the onle one made new for it was like $800 and for racing application. Finaly got one after looking through(ok calling) a few salvage yards.
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