REALLY important Smarty Jr question???

[EArp]

Ok so my dad just bought an '05 2500 and I wanted to let him try out my Jr on HIS truck when we do our trip to Dallas tomorrow. I set the program back to "stock" on my truck and it loaded the "performance" program on his without a problem. My question is related to the tire size. I have the stock 265/70/17 on my truck and HE has the 285/70/17 on HIS truck. We adjusted the tire size to 31. 25 and it works great. However, I failed to write down what the tire size was before we adjusted it to HIS truck. I'm just afraid that since I can't remember what the Jr was set on for the tire size on my truck before we programmed his truck that it won't set all the way back to stock to re-program mine after we get back. Any suggestions is GREATLY appreciated.

 

[LRutigliano]

Stock is 30. 65"