Great pic Smokey. Makes you wonder if it came from the same molds some of the last car rears were made from.

Just eyeballing the Dana 60HD compared to the 69 and 71 car Dana 60s, the 60HD tubes appear to be thicker, but maybe by a 1/4" or so. Also, the tubes taper down a fraction in thickness a few inches before the backing plates on the 60HD, whereas the car Danas taper up in thickness???

The numbers on the 60HD are 6 7 5, meaning June 7, 1975.

The B.O.M. # is 603514 - 2, (5 is pitted, my best guess). Haven't been able to find this number on the internet, but did find a 603516 for a Dana B.O.M. The 60HD was cast in on the front side of the center housing.

The rear had dual wheels on it, but it is not a sure-grip unit.

The ratio tag has 11 on top, and 4? something on the bottom of it. I could only find one ratio with 11 for the pinion gear, so I presume the ratio is 3.73.