The list of trucks with the 161" wheelbase includes all 4400 and 6400 series withe GVW's as light as 7500 lbs (4400 running single tires front and rear w/curb weight of 4365lbs) to 16000 lbs (6400 running 8.25-20's dual on the rear axel and curb weight of 4985 lbs) curb weight is for chassis and cab only.
These numbers come from the "Advance Design Commercial and Truck chassis Layouts and Body Builders Installation Drawings" published May 15, 1949. This is a really cool set of genuine scaled factory drawings of the trucks - ebay is good for a few things
