Dana 70 or Dana 60 Id - Ford Bronco Forum
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post #1 of 37 (permalink) Old 08-08-2005, 11:19 PM Thread Starter
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Dana 70 or Dana 60 Id

I found a rear axle underneath a 73-77 F250. I don't know how to tell the difference between the two. I don't want to pull it out until I know for sure. I can't get to the axle for the numbers off of it and the tag in the door jam is painted over. Are the D70's that much like the D60's. I have a pic somewhere or I can get a pic. Any help would be appreciated on how to identify it.

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post #2 of 37 (permalink) Old 08-08-2005, 11:26 PM
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Its a D60
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post #3 of 37 (permalink) Old 08-08-2005, 11:28 PM Thread Starter
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That is what I was wondering. It looked pretty beefy.

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post #4 of 37 (permalink) Old 08-09-2005, 01:25 AM
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post #5 of 37 (permalink) Old 08-09-2005, 03:40 PM
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Originally Posted by lightnin
I found a rear axle underneath a 73-77 F250. I don't know how to tell the difference between the two. I don't want to pull it out until I know for sure. I can't get to the axle for the numbers off of it and the tag in the door jam is painted over. Are the D70's that much like the D60's. I have a pic somewhere or I can get a pic. Any help would be appreciated on how to identify it.
Mikes right. Don't recall seeing any BOM's for D70's with a 3/4 ton truck. But, real easy to tell to confirm....your D60 (mine is from a 77.5 F250 2wd), will have a "60" stamped right on the right side of the pumpkin, toward the bottom, looking at it from the rear.

It might look beefy, until you take a gander at a D70.

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post #6 of 37 (permalink) Old 08-09-2005, 04:44 PM
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Yeah they have the numbet right on it. Other ways to tell is, for one, just by looking at it, but if you arent to famillar with what they look like that wont work for you. Another way is the D60 has 3.25" tubes and the D70 has 3.5" tubes (the D70HD has 4" tubes)
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post #7 of 37 (permalink) Old 08-09-2005, 04:47 PM Thread Starter
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Thanks for the help guys. Either way a D60 or a D70 is still more durable than the 8.8. I am going to crack it open and see what setup it has in it.

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post #8 of 37 (permalink) Old 08-09-2005, 05:54 PM
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Yeah they have the numbet right on it. Other ways to tell is, for one, just by looking at it, but if you arent to famillar with what they look like that wont work for you. Another way is the D60 has 3.25" tubes and the D70 has 3.5" tubes (the D70HD has 4" tubes)
I love my 60...but actually the tubes are 3.125 if you put a caliper on them. Not sure if all 60's used the same tubing or not. This is slightly less dia. than my 8.8 was (3.25), however (and this is big), it's full float of course, and uses what appears to be 3/8" (.375 wall though this was hard for me to tell, I did the best I could to measure wall thickness after taking out the breather. does not look like it's quite .5", I'm guess 3/8) thick axle tubes vs. the 8.8 .188 wall tubing and 6 plug welds per side vs. the 8.8's 3 (the main culprit with 8.8's spinning tubes). So the housing is very sturdy, just not massive. Whereas the D70 is just outright sturdy, and massive.

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post #9 of 37 (permalink) Old 08-10-2005, 01:05 PM Thread Starter
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Is that the same size u-bolt as the 8.8? I can't remember if they are 3.25 or 3.125. I just bought new ones and haven't tightened them down yet.

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post #10 of 37 (permalink) Old 08-10-2005, 01:26 PM
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Is that the same size u-bolt as the 8.8? I can't remember if they are 3.25 or 3.125. I just bought new ones and haven't tightened them down yet.
8.8 is 3.25 60 is 3.125, though I'm not sure if the spring shop actually uses a different bender machine for these. But my stock ubolts were only 1/2" I think, whereas you really should use 9/16 min.

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post #11 of 37 (permalink) Old 08-11-2005, 12:18 PM Thread Starter
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Thanks Juice.

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post #12 of 37 (permalink) Old 08-23-2005, 09:09 PM Thread Starter
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Well Well Well. I thought it looked bigger than my D60. I pulled the tag and it says 3 54 and the BOM# matches a D70 Rear out of an 1985 F-350

605247 FORD 70 REAR 1985 F-350 CHASSIS - 70U

I can't afford to buy new gears for it. How much is it worth? Would anyone on here be interested in it.

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post #13 of 37 (permalink) Old 08-23-2005, 09:22 PM
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lightin where did you get the info to read the bom for the d 70 ???
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post #14 of 37 (permalink) Old 08-23-2005, 09:38 PM
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Guess I'll post this again so you know for sure what a 70U looks like:



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post #15 of 37 (permalink) Old 08-23-2005, 09:46 PM
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I think the D70U is an ugly axle. Sterlings look good, and 14 bolts have a coverplate thats too big. Thats why I have a Sterling axle
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post #16 of 37 (permalink) Old 08-23-2005, 09:54 PM
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lightin where did you get the info to read the bom for the d 70 ???
http://www2.dana.com/Expert/wc.dll?DSD~demenu~DEMENUA~
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post #17 of 37 (permalink) Old 08-23-2005, 10:11 PM Thread Starter
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Here

Here is where I got it from.

the link steve posted says 70R

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post #18 of 37 (permalink) Old 08-23-2005, 10:27 PM Thread Starter
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I knew I should have took the camera.

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post #19 of 37 (permalink) Old 08-23-2005, 10:43 PM
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Quote:
Originally Posted by lightnin
I knew I should have took the camera.

You really should have. Want to see this axle. It's pretty hard to mistake a 60 for a 70 once you have seen them. The 70 is surely bigger, bigger tubes, and less ribbing. See Larston's 70 pic, 1 smallish rib (though thick)? D60 has 2 longer ribs each side. Sorry mike but that is a nice axle in every aspect....smooth as a baby's bottom as it glides over rocks (Larston, did you do any grinding on the bottom?), strong as a rock. The 60 is similar, just not as smooth (and surely not as strong), but still way better than the "rock catcher" (coined by KL? or?) and the potato trench digger (BigNorm called the 14B something like that)...in smoothness underneath, not strength.

BTW, doesn't it have a little "70" stamp on it lower right corner next to the diff, looking from the rear? I believe all 60's do.

Even better to ID is to call up six states...they can contact Dana directly, and have several massive ID books. thats how I confirmed both my axles.

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post #20 of 37 (permalink) Old 08-23-2005, 10:49 PM Thread Starter
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I couldn't make out what was on the bottom right of the chunk. Looked like the Spicer Diamond emblem. I have to crawl under to see it. I haven't crawled under from the front to see if it is smooth.

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