Mike,
Not sure which trailer your looking to replace the cam locks on, but if you have a Global Key (your Jayco should have if its like our 32) you can order new cams that match the door key from WWW.RVLOCKSANDMORE.Com. You just need to measure the stock cam length to be sure you order the correct replacement cams.
I re-keyed all our locks to match the outdoor kitchen as that was the easiest way. Only lock I didn't change is the outdoor shower because they didn't have a new cam short enough for the outdoor shower.
Good luck!