2015 Yukon XL
I have a post about TV selection, and I still plan to purchase a heavier TV at some point. That being said, I am toying with the idea of picking up a travel trailer in the neighborhood of 4730 UVW/68...
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Even if you change gearing and get the PCM re-flashed for the new gears you won't have the heavy-duty cooling package.
I don't know about GM, but rumor has it Ford can tell if you re-programmed the engine computer and then set it back to stock.
I don't know about GM, but rumor has it Ford can tell if you re-programmed the engine computer and then set it back to stock.
