Locking Differentials: A locking differential essentially locks the turning of the left and right wheel together. "When you need to travel fast and keep momentum, you need to be in 4WD High." "In short: when you need a lot of low-end power at low speeds on the trail, go to 4WD Low," Croft says. When you go to 4WD Low, you have more torque on low-end speeds, but your top speed is maxed out pretty quickly. It allows for better top-end speed but lower torque to the wheels when stopped. 4WD High is what you drive around in day to day. 4WD Low: Low and High speeds refer to the gearing of your transfer case. Since there are so many kinds of traction control systems, we encourage you to read up on yours and its many settings in your owner's manual.ĤWD High vs. "Traction control tells the onboard computer how to monitor wheel spin and it will brake accordingly to keep the vehicle moving forward," adds Clay Croft, Creator and Expedition Leader of Expedition Overland. No matter the system, traction control uses either the brakes and/or the 4x4 mechanicals to limit wheel slip and ensuring torque is being transferred from the tire to the trail. Depending on what conditions the vehicle was designed to conquer, it could have a simple on/off setting, or a complex system with multiple settings programmed for different traction situations. Traction Control: Most modern 4x4 vehicles will have some level of traction control.
It's important to understand them, and what they do. Your truck has a number of key systems that play a role off-road. To help remove a little of the worry, we talked to some experts and asked them to explain some of the basics of heading into the wilderness on four wheels. It's an adventure that can be challenging and confusing, especially if you're not prepared. And, really, what's the point of 4x4 if you're not actually going to use it, at least occasionally? But simply going off-road isn't as simple as it sounds. They're built to comfortably handle highways, but are just as adept once your turn off the pavement and onto the dirt.
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