Tyres being your only contact point between terrain and truck determines how easy or hard your off-roading will be. Playing with different tyre pressures represents the cheapest mods you can do to your truck to change the way it behaves in an environment. Simple mod tip – If stuck, reduce your tyre pressures and try again (no less than 15psi if not beadlocked).
Here is a simple tyre pressure guide:
Note that reducing tyre pressure is better for the environment as well as your traction.
This is because you’ll be maximizing your tyre surface area (contact patch) sitting onto of the terrain rather than cutting it up. One positive side-effect is that increases the level of comfort for you and your passengers, enhancing your suspension.