OK so I have this 56 chevy on a 78 LWB frame. It has a Corprate 12 in the rear and the front axle has 10 bolts but is not round. Is this a Dana 44 or a corprate 10? The main problem I am having is that everything I have read states that every chevy 1/2 ton or 3/4 ton had the 12 front and back?? so I am confused.... Any help??
GM never made a 12 bolt front. '78 should have a 10 bolt front, but it could have been swapped. http://coloradok5.com/axleguide.shtml