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...
Forum Discussion
Knminton wrote:
Ok, thanks guys. That solves that one. I assume there is no way to change the gearing without modifying the PCM?
You can, but engine RPMs will be totally different with lower gears, and it will for sure throw off the speedometer, and might cause other anomalies since the engine is at a higher RPM for a given road speed.
