"In that era Yale used the slant 6 starting in the class four models. (11k capacity through 15 k capacity.)"

Wow, a slant 6 in those big trucks??
I have a 1970 G83 (only 4K) that has a slant 6 in it.



Thanks for the link, but I have given up on the Diesel for cost reasons.
It will still be probably $2000 or more to rebuild it.
Just not worth it for my application.
If I could find a reasonably priced ($500-1000??) used diesel, I would consider that option.

dk