I'm not so sure that the producers of Trucks didn't re-sign him as much as he didn't want to re-sign with the show. The reason I say that is, just look at Gearz... with Trucks he was pigeon-holed into doing on truck projects and now he's working on a bunch of different things... even put together that V8 barstool for one show (which was too cool). I think he's got WAY more creative control with this show, letting him do the projects that he wants to do.