The Stovebolt Site Forums The Parking Lot Big Bolts Need help identifying an Eaton rear end

I have positively identified the axle as a 17,000 lb GM unit.

The truck has cast wheels and demountable rims, (Detroit wheels?), so I am guessing that changing the entire assembly is cost prohibitive. GM did make a 2 speed version of this but the gears that appear to be available are even lower, no help. The only concern I have is too many rpm's on the highway, just like most other old truck owners I guess. I would like to drive it farther afield, many of my "local" events are a hundred miles away. The truck has less than 6000 miles at this point so I don't think I will ever wear it out. At least now I know what I have in case I run across something by chance. I will spend some time cleaning the tag on the transmission, it was painted over, and determine what model of Clark it is, (I can read "Clark", just not the model). Maybe an over drive will fall my way.