So below is a picture of the passenger side frame rail splash shields. I THOUGHT there was only one like the first and 2nd pictures but then last weekend at a local junkyard I pulled off the following splash shield shown in the 3rd picture from an 86 Dodge truck.

Can anyone confirm either of these 2 pass side frame rail splash shields in THEIR truck? Trying to figure out why the difference. Year? 2wd/4wd?