saw a skinny on the internet tried to steal the pic to upload here but wrong file type so it won't work.

the tire is burried half way in the ground with 2x12's or so for ramps up and down using the tire top for a crown. wanna build one somewhere, it was cool looking.........

if you have the inside scoop as to where to get REAR tires from a FARM TYPE tractors, pitch in.... post up or get in touch with me.