Hi Max,
I used a bit of 40mm Delrin for the bush and the wheel is sitting on the Delrin but you might be right that I have to put a thrust bearing in there. It all gets very technical and I originally didn't want to use a wheel but I ended up having to because with the suspension on the 4x4 everything moves all over the place and even the diff rotates as the the suspension goes up and down. It has made mounting it very difficult be we keep bashing on with it
