My next build this fall will be a heavy duty ATV trailer to pull behind my sp 800. I want something with independent suspension, heavy enough for wood cutting, but light enough for trail riding/camping. I have looked at northern tool and found some torsion axle setups in 500# range, but want to run sportsman 4/156 wheels. Does anyone have adapters to go from a 4/4 jub to a 4/156 polaris wheel. Any comments or ideas would be appreciated. I have the steel and wheels/tires sitting in the shop, just waiting for a way to mount the tires to the hubs.