[PaulJG]

Thanks for info. Mine is manual locking hub. Have to read more about full time setup butvaware of them.
I bought a matching set dana 44/12 bolt thought to be 3.08 from a 75 Blazer..but code on fromt tube dana 44 stated 3.42 1978. I did a rotation test on rear.. .3.42. Was unable to find code info from axle tube stamp. These will work as temporaries...my initial plan.

Pic is of rear tube...(photo flipped between gallery and posting here..sorry.)
KDG. W112 1