I plan to make a trip from Ubehebe Crater to the Racetrack Playa (about 27 miles) in Death Valley this winter. I'm worried about the road conditions as much of it has corrugations and the time needed to travel the 27 miles (many have said to allot 2 hours travel time each way). I can cut travel time significantly if I can maintain 50mph (80km/h) for long stretches. Besides lowering tire pressures and switching to proper AT tires (thinking KO2 or WildPeaks, what would you do to prep the truck for this sort of trek? The truck has 292K miles, original shocks, newer Dobinsons springs, and Michelin Defender LTX M/S tires for in-and-around town and smooth gravel/dirt trail driving. Thanks.