Hi, Trying to restore a 4WD Kubota B6000, I'm having a question about gear-ratio for the front axle and front tire size in this special case. I took over half a tractor without diesel engine from a guy who had given up the project. He had bought the front axle but it looks like it's from a Kubota B5000. What size of front tires can I use for this unusual combination? Is the gear-ratio in the front axle from B5000 the same as for the B6000? Tires at the rear axle are 7-14 japanese rice field type. Would appreciate an answer in this forum. Thank you!