Re: Airing down your tires - when and how much?
Hmmm, 2WD. Reduced tire pressure depends on the size and type of tire.. I have the 245 stock tires on slightly wider than stock rims and for good bad baja roads at lower speeds 30psi in front, 35 back is as low as I roll. If in sand one can go lower, but then the what if we swerve or hit a large something turning and roll the tire concern looms...
Those with the 4WD big meats can easily go lower....but even 35 front and back is pretty good on washboard as long as you go slowly....there is the go fast float school of thought, but when it goes wrong (harmonics, rocks, or slippery) it is a drag..at least from a baja out there point of view. Each road is different..You can and should always experiment.
Have fun with it!
Pac NW and warmer places
1995 E250 EB 5.8 2WD on to a new owner
2006 E350 EB Elect Top 2WD