I made the mistake of buying a disc brake setup for the front and rear when I got mine only to find out that the front and rear end was swapped to 3/4 ton. When I first got the truck nobody in the family could tell me anything, now that I've started tearing it down looking for more issues family members are coming out of the woodwork with info. Decided I'm going to tear it down to the frame and fix/repair/replace after I know for sure what everything is.