Does anybody know if a 4.00x8 tri rib is available as a radial tire? I bought a set off of ebay and discovered they are tube type. I am currently running 3.50x8 radials on boat trailer wheels for the front of my tractor at 40 psi due to the weight of the diesel engine, I think I need similar pressures with the 4.00 tire, but tubes won't hold that if i'm not mistaken.
I discovered the front deck roller was getting too much down pressure and wearing heavily, thus the change of front tire size. I think the 4.00x8 will be closer to the height of the original 16x6.50x8.
Edited by MF10 DIESEL, February 24, 2013 - 02:24 PM.