Awfully thin ... and the truck has coil springs all around (dunno if that disqualifies the part from that function, however.)
I think I figured out that the parts came from American Classic Truck. I emailed them the pictures and asked if they could identify them. The XSP2 part number isn't in their catalog as far as I can tell. I don't really care about those at this point, but I'd sure like to know what that weatherstripping is for....
