1974 D 100 Step Side Advice/ Help
I have a 74 step side, with a slant six and 3 speed trans, no air, ps or pb. I would like to swap out the 3 speed for a auto. Does anyone know what auto trans will marry up to a slant 6? Would it be a better idea just to swap out the engine and trans and go with a 8 cyl and auto trans. Thanks


