No such thing as a stupid question..
From what I know, Front and Rear bumpers are the same (sy,ty,sgt)
Front fender cladding is the same ( sy,ty,sgt)
evrything else from a Ty will more than likely not fit a sy,sgt...(corners,rear arches, etc)
however I'm pretty sure everything from a sy/sgt are interchangeable ( both being pickups) but of course the style is different.
Maybe someone else will chime in? I maybe missed something or gave wrong info. We'll see
