Maintenance for a long drive

Hello everyone. I need to pick your brains and experience. I have a 2010 Titan CC with 82,000 miles. I am driving my Truck from Northern NY to Alaska next month. I have done quite a bit of maintenance that includes:
Coolant change and radiator flush
New Plugs
New Battery
Heater core installed
Drivetrain fluids changed
Power steering pump checked all good
New Tires- extra spare
Installed Timbrens for stability and towing.

I had same dealer check everything I could think of for maintenance.

Can anyone think of anything else that would be essential for this long drive in Dec/January?

Thanks for your help!