Well, the 1118301 was bad, too, so I'm looking on ebay for another one. I see many that purport to fit all chevies from 40-52, 3, 4, but there are MANY Delco Remy part numbers supposedly fitting this description . Right now there are two vendors selling remanufactured regulators with part numbers 1118729. Can anyone tell me if these would be correct for my truck?