We’re running reg 87 octane. We swap between the 22s and stock 17s. Bought an extra set of TPMS for the new wheels. I’m not going to be going to the dealer every time I swap for them to adjust the tire size. Just isn’t practical as we are every bit of an hour away.
Been looking for a programmer to change the tire size as needed. I think the tranny is struggling with the extra load the larger wheels add. It just drives different. From my research the civilian tahoes come with the 3.08 gears too. The z71 gets the 3.42s. With these being a stock size wheel and tire and the gearing being stock civy the trans being confused is the only thing that makes sense to me. It’s much more fun with the 17s
Brett
Brett, did you weigh the stock PPV 17" wheels? If so, how much heavier are your new 22's?
I don't know about the 2015+, however the 07-14 PPV wheels and tires are also 1.5" shorter than civilians. I think this increases the final drive 5%.