Like 'Mater I use the inner tubes but from cars/trucks....ask your local tire shop to save ya a couple when they see them. They are handy for a lot of things. I just cut them in long strips where needed.

I know someone will post up and say that the rubber will hold moisture and create conditions for rust. Rust is a fact of life with these old trucks.

1951 restoration on website
~~~~~~~~~~~~~~~~~~~~
http://www.hanklong.com