Welcome to the stovebolt page. Not a bad truck given the year but a lot of information is missing. If you can have the seller take a picture of the passanger side cowling at the rear of the hood. The plate should be there if it hasn't been removed. Does it have a 3 speed or a 4 speed trans. Most of the 1/2 tons came stock with a 3 speed trans and the 3/4 tons were 4 speeds. On the plate should be a # that looks like (21DP02) Next to that should be 4 or so # 6110. The 1/2 tons were built on a 115 inch wheelbase and the 3/4 ton on a 125 1/4 inch wheel base. The 46 1/2 ton should be a CK or DP the 3/4 ton should be a DR on the build plate.
Hope some of this info helps.
