I'm building a 68 charger and I want a dana 60 in it but they're tough to find and super expensive. I'm more than capable of building one and I found what I hope is a good piece at the local junk yard. It's out of a 74 F-250, has 3" tubes instead of 3.125" which is perfect for me because that's what it would've been in a real dana car. It has the 9.75 ring gear and the tag bolted on the back indicates that it's a 60. The problem is down on the lower right web it has 80 casted on it where it should say 60. I scraped it good and i'm not mistaken it really says 80. Is this a factory mistake or is it some weird odd ball cross breed rear end. It's still a full floater with 8 bolt hubs, also is 4.10 with those coarse 16 spline axles if that helps paint a better picture for you. I know off road guys like danas so that's why I'm asking here.

ain,t no 80, they had bigger load tubes and A LOT more beef around the whole unit, key if it looks just a pass car except for the pinion snubber mnt pad most likely a 60.

I've got three of them laying around that nobody seems to want. I have a 77 D200 crew cab frame, a 77 D200 club cab, and a 92 D200 that had a Cummins. I assume they are all D60's

I think he wants to use that Ford 60 because it has a 3" axle tube if I understand his comment correctly

Thank you hp383. You are exactly right, I want the 3" tubes for authenticity. I know it's a 60 i'm just trying to figure out why it has 80 on the casting instead of 60. I dont know if its just a factory flaw or if there is something else going on here. That"s all.

I have to agree with Randy because when you see a 60 next to an 80 there is a dramatic difference between the two. Every early f250 I have seen is a 60 and even 350's had 60's in them. I think that 80 you see is possibly a casting mistake because the 3" tubes are the tip off that it's a 60
Gus

Call Ford.
Not authentic when a ford D60 and and a truck one at that. build date and serial number will be different too

On the back side of the Passenger side axle tube you will find a string of 6 numbers stamped into the tube. The first number will be 6 for a 60. Take the numbers to a differential shop that has all the Dana Spicer catalogs and look up the number. When a new version of the catalogs are printed, they drop the older listings so you will probably have to look at more than one catalog. If the tube has been changed then...
You mentioned the 16 spline axles, IIRC that is a common Ford deal. A new Limited Slip Differential with 30 to 35 spline axles is in your future if you put any real power to the ground. I have a rebuilt 30 spline PowerLock carrier that will accept 3.54 to 4.10 gears if you need it. PM me if you are interested, I want to move it.
Good Luck

76dodgeboy.... I'm well away the numbers won't match on the rear end. The numbers on the 426 Hemi I have sitting here to go in the car don't match either but I haven't heard any complaints about that yet. I'm concerned with the correct appearance and that's why I inquired about this axle since it has the correct size tubes. Also since this is a non numbers matching car I don't care if a Dana came out of a Ford, a Mopar, or the even space shuttle for that matter; they were all still built by Dana Corporation, not the auto manufacturer. Numbers don't mean squat to me on this particular car so long as it's the correct dimensions and appearance. As for you other guys out there that have helpful and positive things to say; thank you all very much for your help and support.

You will need to get the BOM build of material number off of the passenger side axle tube. That will tell you what you have.
Matt

Its a Dana 60.. Early ones had 16 Spline axles , They also used a 1 1/4 Pinion Nut and the Later ones used a 1 5/16 Pinion Nut..The early Dana 60 used a 10 spline Pinion and later used a 29 spline

The Dana 80 uses a 1 7/8 Pinion Nut and Has 37 Spline Pinion.. There is a size difference in the pinions.... D 60 is just over 1 1/4 and the D80 is 1 5/8







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If it has a Dana Ring Gear in it , You can tell by the number that's in the Ring Gear too.













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