1 35 scale Duece and a half or 2 1/2 ton cargo truck replacement tires?

The above replies are true but if you absolutely NEED "rubber" tires for your model, try diecast vehicles for thier wheels. 

Fairfield Collectibles is one source

Thanks guys, I have quite few trucks & car models. the rubber tires on them seem to be okay. I've done 3 cars that I owned. My First car was a 1965 Chevy Impala. I asked my dad to find a car for me, and he came home with the chevy and it was painted Evening Orchid, so my model is painted that color too.My 2nd was a 1965 Ford Galaxie, and then I had a 1972 GMC Sprint. These are some of the models I've done. The Impala was the first car model I did when I got back into modeling. The GMC was an El Camino, with a GMC label. I wish I still had that one. I found out there were very few of them made.

Thanks again

No, noone that I know of makes rubber AM tires.  Most poeple replace the rubber kit tires w/AM resin ones.  Pretty much all AM replacement wheels/tires are in resin.