From what a friend who operates tire shops here tells me inner tubes bought in the past 2 or 3 years have problems and aren't the same as they once were.

Note: the tubeless valve stem for these wheels is 5/8" (.625") diameter and the stem you need is the 415 which are growing less common all the time or the 425 if you want a 2 inch long stem. Your tire shop may have some around or they may not. It wouldn't be a bad idea to get some at your FLAPS and have them with you. The ones made by Milton are good and usually around $2 or so.

~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end