i was wondering about the same thing a few months ago when i was bolting up the inner fender wells. I asked to see if anyone had one laying around in the parts wanted section, and i wasn't getting any replies and a few was confused on what i was looking for. I looked through catalogs and such and couldn't find anything, the driverside mount is avaliable in catalogs but not the passengerside. I then finally realized that there was no mount for the passenger side when i went to look at another truck and seen that it was just bolted to the cab.