If you have an inside lead on a tire place, you will have it made.
In my opinion, the 19.5 inch one piece rims and the tires available in that size are not tall enough to be a good option on these old trucks. I don't have the tire diameters on hand, but they must be nearly 3 inches shorter than a 8.25x20. Gearing on these old trucks limits top speed, and shorter tires only makes the problem worse.
I have a broken down Firestone RH5 in my scrap pile, if you are interested in seeing how they work I can send you some images.
As for posting images, it is kind of convoluted. You must first upload the images from your camera to a photo host site like Flickr, and then link the image to your thread here on the Stovebolt. There are many folks on here that are more adept in the digital world that can walk you through the process better than I can.
Good luck with your truck deal, I hope it works out for you. Keep in mind this is a hobby, and it will suck lots of cash and time...but it is addictively fun.
Paul
