well ive heard of pretty high tailgate thefts and i went to go lock mine and it seems my lock is seized and this is the original tailgate according to my gramps (but who knows if he remembers if he changed it or not) so if it is not is there a way i can get my key to work again
If the lock is seized up try spraying some Liquid Wrench or P Blaster in the lock and letting it soak in real good. If you get it freed up the use some graphite powder inside the lock to keep it from happening again. Good luck!