Last Friday I purchased a Procal from Quadratec. I've been reading a few threads and I am worried about using it on my 2013 and it not working. The box didnt have the "2013 ready" sticker. I bought it to correct my speedometer when my 33s come in this week. I looked at several vendors and the two letters at the end of the product number at AE. The two letters on mine are AF. Did I get the wrong one or what?

 

From what I have been reading there is a flash update from AEV available. A couple of members have been emailing AEV support, but none have gotten back to them. I don't think it will work unfortunately, but hopefully AEV replies back! Good luck

 

Mine was AE to suit the 2012 jeep JK, so your AF edition is an update from the earlier version.

 

That's the right version for 2013. Probably got a defective unit.