certainly not meaning to be a stinker and I'm still learning little nuances of these trucks too, but you are correct on both counts. If you look at those '36's you posted, they have the fuel filler behind the rear fender. The earlier trucks were very basic with very few variations, as you move into the AD series things started getting much more diverse as to models and options. My '37 is like a basic burger, meat,bun, one pickle slice and squirt of ketchup and mustard...
