Thanks for the info, i went to a hometown car show last night and saw a 1/2 ton short fleetside, i got under it and saw the rear shocks mounted like you said, but they mounted off of the leaf spring u-bolts and a stud mount on the frame. I have no top frame mounts at all on my 3800, are you saying that rear shocks are an option only for a 59 3800? I have the fronts just not the top mount on the rear. The parts books that i have show the same shocks front/rear for a 3/4-1 ton 59 I don't know any one with 3/4 or 1 ton to look at to see what fits or what the mount looks like.