I have a '72 D100 chassis under my 66 Dodge pickup. This chassis is a factory disc brake option truck. (Discs became standard in 73) I'm thinking of going to 3/4 ton for a number of reasons that I won't get into now. What I'm wondering is two main things. First, What year would you recommend that I get my parts from? Secondly, are the 3/4 and 1/2 ton A-Arms the same? I seem to recall that they are, in which case I might not need that part from the donor.
