Best Truck For Mountain Driving
Hello forum, My wife and I are getting ready for full time RV living. We will be spending the majority of our time in Colorado, Northern California, Washington and other states with mountainous t...
Forum Discussion
PRodacy wrote:
GMC diesel with the Allison will give you the best downhill performance (braking, holding you speed, etc,) and be as good as any of TTC others going uphill.
The Allison was the first but all the new transmissions have grade braking.
