Tires Shibaura SL1543 Rear Wheel Hubs

[bobkatr1]

I recently purchased this tractor and want to reverse the wheels to gain more stability. The rear wheel hubs are apparently designed to slide along the axle and have an external hub with springs and pins. Does anyone know what this is and / or how to get the wheel off? I am stumped, the front wheels just unbolt and then reverse side to side. Thanks!

[dixstir]

sorry not much help .I sold mine last year but I know mine had a 3/8 pin going throuh the axel shaft . they would move around without this in place.I looked the tractor up online and there was a place in wash. that had parts and info on them.