The rim and tire are meant to be printed with an SLA printer. It is a 38mm wheel designed for a GMC pick up that is going to be a part of a postapocalyptic diorama. This file requires special redesigns of the front and rear axles and suspensions (Revell 85 7222 kit model).
If you need it adapted to a specific truck/model or in a different scale/size, please let me know and I will help you out.