I bought one on Jegs for my old F-250. It was a Ford one-wire with internal regulator. Same company that makes one of the big name brands but Jeg's has them stamp their name into it instead... I think the Chevy's were cheaper.... Check it out. I got the flu and have some things to do at work before I head home. Alt. worked like a charm. Is still running today after 2 years of mudding. I have since sold the truck but keep in contact with the navy SEAL who bought it.