I've seen Vette wheels on them and vette wheels on irocs. So I figured either all fronts or all rears would work, Also didn't the Marlboro Syclones have Mesh wheels?
i think the rear GTA's (the ones we can't use on G bodies becasue they have too much backspacing) would work nicely on an S series 4X4 truck.
if you were local to me, i'd say to come on over to see how my set of rear GTA's fit on your truck.