I'm sure this questionis buried on here somewhere but I need to ask anyway. The rear end in my trock is a 10 bolt with a removable 3rd member. The back of axle housing is round. The tech guy at summit racing said he thought it was off of a 1957-58 truck (I was told by my dad that mine's a 55). I want to use the rear end and just upgrade. Does anyone know how to identify the rear end type and gear ratio?
