Forward road wheels are set too high to allow the top hull to fit properly. Without cutting the forward road wheels in half the top hull sits about 1/4 above the bottom hull. The drive wheels are too close to the flange on the bottom hull which requires cutting away the flange over the drive wheels. The idler wheels are also too close to the upper part of the bottom hull and it is a tight squeeze to thread the tracks onto the hull. Very poor tool & die work on the part of Trumpeter. One might say the Trumpeter Blows