needs track, 6 boogie wheels and thats about it. I called on parts and the track is 325 cheapest and 250 to install it and the boogie wheels are 23 each. Not sure on any bearings, brakes, anything with the motor when i went to look at it he had the fluids out of the motor. So I dunno what the motor needs if anything. the sled has like 4500 miles on it i think. I know its over 4k.