under my truck on the rocker panel is what appears to be whats left of some type of weatherstrip retainer. It is installed with clutch head screws so my thought is it is factory. can not seem to find anything in the parts books. I appreciate all the help you guys provide as i am putting the truck back together now I will have a bunch more questions as i move forward. thanks Joe
Re: Its called a cab to running board seal. You can find it on this page of the online catalog. HTH http://www.classicparts.com/Cab-Parts/products/73/