Spadaro's dead on. Truck fenders are usually pretty well slammed, because, well, it was on a truck, and meant to be beaten and abused without mercy - or so it's always seemed. Love your AAs, because they've been abused and neglected.
I had an early '28 AA Rack Body truck years ago with full fenders. Fronts are the same a car, rears were unique to the AA. The spair was hung under the back of the frame in 1928-29. There were some side mount spair built AA trucks in 30-31,tire was so large the doors had a dimple in them so you could open them. Bob