The running board seal and retainer are placed rubber lip on underside of the rocker panel lip then the retainer on top of the rubber still on the underside so if looking up lying on your back you only see the heads of the screws on the bottom .looking at your picture to me it looks like the retainer on the bottom but I cannot tell.

Last edited by KEVINSKI; 10/06/2023 12:24 AM. Reason: More imfo

1954 Canadian GMC 9300
"The Journey"
Follow in the DITY