Bart, I must have not explained this well enough:

That 1992 W-350 cummins had an extremely harsh/heavy duty clutch. I could be on flat gravel, at idle, let off the clutch slowly, wouldn't matter. The fkn clutch would hook up, and bury those tires at idle.


So going down an icy/steep grade, when shifting, the engine compression of that diesel and the the harshness of that clutch, you had to be extremely careful. Yep, rear end had a Detroit locker.

I live on the tallest hill from Fairbanks to the Canadian border, she's a sketchy one with LOTS of accidents.