Steve, the door check go behind the kick panel on the 41-46 truck. there should be a bracket that welds in the inside if the door and two tab come thru the hole that the check fits into. these is a stub that goes thru the tab and the round end of the check and lock in with a clip. you may have to play with the check to make sure you have it in correctly, it only goes two ways. the door tab may be missing, but Jim carter and Chevy of the 40 sell them. Good luck Jerry
