2007 Silverado body fit on 2003 frame?

[Douglas]

I have a 2007 Silverado with a 4.8l and the frame is just about shot. My 2003 has a 5.3 and a good frame and solid drivetrain. The 2007 body and bed is in almost perfect condition so I was wondering  if anybody has done this kind of swap befor, put the newer body on the older frame?

[davester]

I haven't done the body swap, but the doors and fenders I've done swap between years fine, particularly newer stuff on an older truck (as newer stuff has all the holes for the older vehicle, as well as new holes/features to resolve problems GM found with the earlier parts, such as adding bracing).