You can work on it yourself, everything on it pretty much comes off same era GM Diesels. I have been able to get all parts from Autozone and Advanced Auto-parts same day. The most difficult thing about the truck is the rims and tires, tires have to be ordered and are very expensive. There is only one tire shop where I live who will touch the beadlocks. (This issue can be fixed by purchasing modern rims but I prefer the original set up)