Hey everyone, new to the forum, just picked up a coleman 400 from tractor supply this week, and of course it was missing a couple small plastic parts. Being as I have a handy 3d printer laying around, I just made new ones. In the downloads portion of this site under the coleman section I uploaded files to print new circular caps for the tie-down holes at the front of the bed, a new cap for the end of the frame near the hitch, and a dummy clip for the seat belts. Disclaimer, always wear your seat belt while riding. That being said feel free to download and print! Check your local library for a printer if you don't have one, or there are online printing services available.