I put 33x15x12.5 wheels and tires on my jk, had the dealer flash/star scan the comp for 33's but the speedo is off based on gps (guess because does not measure true 33?). Can I correct this my self with a Procal. Does my jk now consider this stock setting? Thanks.

 

Anyone? Bump for advice

 

You should really try the search feature first.
Simply put, yes, ProCal will fix it.

 

Yup buy a Procal. You can correct your spedo yourself in under 2 minutes

 

I know it will fix it. My question is if I return to "stock" setting to free the Procal if I resale will it return to oem or the dealer scan for 33"?

 

Yes if you reflash the pro cal it needs to be done with your Jeep so it will bring it back to factory settings.

 

If I understand correctly, you are asking if you were to use the Procal to return to "stock" settings, would the Jeep "remember" whatever the flash was that the dealer did?
The answer is yes. The Procal will save whatever the current setting was that you changed, and if you use it again to revert so that you can sell the unit unlocked, it will put it back to whatever settings/information it had before the Procal was used.