Hey,

Question about a TCM tune for my 08 Duramax LMM, I currently have ATP Idaho Rob's ECM tune, what im curious about is there any adverse effects on tuning my Tcm with the Shift point correction calculator for my new tire size?? I have read about other tunes that people have been having issues with the allison acting up after doing so, or should i just leave it be?? my stock tire size is 29.80 new tire size is 32.82 Which calculates out to a 10.16% difference.Am i safe to go ahead and do so??


Thank you guys!