i did try them out, i used a set of wheel mounts to make them and screwed on a piece of rubber to soften the hit. i took off the belts tonight because i dont have the time right now to set them up as i have to get the sled ready for racing this weekend. i got alot of cluthing time needed and also need to put on my hauck head with the high compression domes. i also got belting there to make a dozen or so belts if anyone wants one. just give me the dimensions needed and the location of the holes.