Dana 60 4.10 sure grip value

mbaird said
Axle tubes are <3.5" .

If the spline count was the same as my 79 CB300 Class A I would consider using the locking diff .

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A Dana 70 has a 9 3/4 ring gear and a 10 bolt back cover.
I believe a Dana 70HD has a 10 1/2 in ring gear and 12 bolt rear cover.
Correct me if I'm wrong.