[hardtimes]

Originally Posted by 2manycars

The 28 AA had a 3 speed transmission and low geared worm drive rear end. It had 20 inch wire spoke wheels. The 29 AA had a 3 speed transmission and came either with a low geared worm drive rear, or a slightly higher geared rear, with an auxiliary transmission called a Dual High, which was an underdrive for heavy loads. The early 30 AA used the same cab and fenders as the 29 until June 1930, when the new cab was fitted. It had much bigger brakes, Budd wheels with optional dual rears, a 4 speed transmission, and a hypoid gear rear end. The later 30 and 31 had the new cab, but was the same chassis as the early 30.
Photos are 28, 29, early 30, late 30.

Q: Was it an AA (early '30)then that was used on the Walton Mtn. show