need to pick up a second transmitter for my 99 club, my question relates to how critical is it to match the number and letter sequence on the back of my current transmitter. have seen several on e-bay that match completely for the exception of the letter suffix on the first two sequences, any help out there?

 

You could maybe check with your dealer's parts dept and give them the stamping numbers off the transmitter you have now and the ones on EBay to see if they change up.