This is a door check info:
http://www.persh.org/pickup/DoorChecks.htm
Notice the cab side.
And a good forum thread bout halfway down is replacement info -
http://67-72chevytrucks.com/vboard/s...d.php?t=668783
This is a funny thread on
YOUR issue:
http://67-72chevytrucks.com/vboard/s...d.php?t=714937