Is there a modern tractor tire that can be used on 20" TT rears? I can't find a 6 x 20 tractor tire but maybe they are sized differently.
Tom, The narrowest i could find were 7.50 - 20. $157 each free shipping on Tbay. But for that you could just head over to Snyders and pick up two 6.00-20 lucas's for $159/each. That's what i did for my Dump project. Unfortunately the tires I took off were pretty well falling apart. - Matt
7.50 20 BKT AS-504 8 ply Tube Type R-1 I3 7.50x20 USAF
look on ebay under 'K9' and you will find the same thing for $110
All academic as FARRR too wide for a TT rim
Check out this thread. The 3rd photo down, I think shows 7.5-20 tires on a TT.