Well I got a free 77 3/4 ton crew cab today and was wondering a few things about it. I know it has a dana 60 rear and 44 front. WHat are the possible gear ratios with an auto? And what kind of auto is it? Thanks.:confused:

The tranny should be an A727 auto and the diff gears should be 4.10 unless it is a BB in which case they could be 3.54..