I have never seen a running board thats fits flush to the rear fender NOT have support bolts. Especially for a truck where one is likley to use the rear of the running board to access the bed. If they are not there I would add them. The gap between the two is usually filled with a welting strip. Welt strips looks like (to me) a 1" piece of vinyl wraped around a piece of plastic clothesline.


Six volt guy living in a twelve volt world