Need some Dana 60 help.

[ns1rm21]

I’m looking for a little info. I have this Dana and I’m trying to figure out what’s it out of? Here are the numbers on the tube, it has a drain plug so it’s up to 1968. It has 4:88 gears and the overall length is 54 1/4”
Thanks!!

 

[silversedan]

11-30-1966 54 1/4 is b-body , probably a 67 car

 

[Caterpillars]

Got this from; https://www.hemmings.com/stories/article/dana-60-differentials-2

Chrysler began using the Dana 60 in 1966 big-block B-body passenger cars (specifically the 426 Hemi and the 440 engines with a 4-speed transmission).

The Dana 60 is a Salisbury-type rear-end, meaning the differential carrier removes from the rear of the axle instead of the front. It can be identified by its 10-bolt rear cover, which appears to be lying on its side. Each Dana 60 has a build date and bill of materials numbers stamped into the back of the passenger-side axle tube. These numbers are fairly small but they are always on original axles. An additional casting number will be stamped into the differential housing to the lower right of the differential cover. This casting number could simply be 60 or it could be something else such as 60-2 or 60-3. The build date (MM/DD/Y) and bill of materials number will tell you where the donor assembly originally came from; additional tags on the cover mounting bolts will tell you the ratio and whether it was equipped with a limited-slip differential. If the ratio tag is missing, you can, in most cases, still tell the ratio from the bill of materials number.

 

[ns1rm21]

Very good, thanks for the info. What is interesting is I see now that the gears are original Dana gears and are date coded 12/21/66. What B body had that?? Even WOs and ROs had 4.56 and these appear to be 4.75??

 

[Suregrip391]

I guess it’s a 4.88 gear, That’s what the 39/8 comes out to.

 

[ns1rm21]

Lol.... where did I come up with 4.75??