OK, so I have been keeping up on the maintenance on my 06 Denali. 130K miles - over the last 6 months I did the required maintenance - new: water pump, hoses and coolant, new shifter bushing, Dod disabled, new front wheel bearings, new tires and an alignment. Now the wife and kid are on a road trip from NJ to Vermont, to pick up the 80+ year old in-laws and drive to Maine (southern Maine thank god). It's going to be about 1500+ miles total. And I'm stuck at work, so the truck has to work without me being there. Fingers crossed. If it breaks down, I'm pretty much dead. I'm pretty sure it will be OK ... but I'm just praying it all goes well for them.