It's not just the hoods that are differend, it'a also the cabs. The AMT cab is a 1968-72 (give or take a little) while the Revell of Germany & Revell USA cabs are 1973-1982. If you want to do a W900B, check with Gary Wallace of GW Trucks (gwtrucks@yahoo.com). He'll be able to set you up with a resin W900B cab & hood.