I saw that as well. It seems to be a personal choice for the owner. Mounting it upside down like that changes the handle direction to open/lock to the opposite way. Some people like to lift the handle to open and others like to push down to open. A different group of people prefer to pull to open and others want to push to open. It works either way but best to remove it and check. Just put it back the same way if possible as that is what she is used to. Good luck with the lube. Something in the back of my brain is telling me WD40 is not on the locksmith approved list. There may be a better product to use. Maybe one of the resident smithy's here will chime in or you can call your local guy to double check. I am not positive, I just have that nagging thought rattling around up there.


1947.2 GMC 1/2T SWB panel
1947.2 GMC 1/2T long bed
1948 GMC 1/2T short bed