Using low range with your 4x4 trucks

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added in 4x4 & diff lock by LC Marshal

Discover exclusive off-road experiences with your 4x4's specialized setup, featuring a dual-range transfer case, suspension, and more. If you're new to low-range usage, keep reading. 

Here are the tips for using your low range.

Here's a basic explanation of high- and low-range for 4x4 systems:

  • In 2H (two-wheel drive, high range), typically the rear wheels propel your vehicle. Use 2H for regular road driving.
  • In 4H (four-wheel drive, high range), power is delivered to all four wheels, providing enhanced traction on surfaces such as firm sand, dirt roads, and gravel tracks
  • In 4L (four-wheel drive, low range), all four wheels are active with a low gear ratio, resulting in slower wheel rotation and increased torque. Use 4L for soft sand, sand dunes, steep hills, declines, deep mud or snow, and slow rock crawling.

In the past, shifting between high and low range required manual adjustments near the shifter or locking hubs. Nowadays, it's easier with a cabin dial, though 4H to 4L usually still requires a full stop.

When to use 4L/ low range

  1. Choose 4L for optimal traction and maximum power. In 4L, all four wheels are engaged, and a low gear ratio is used. Low-range is essential for conquering soft sand, sand dunes, steep hills, deep mud, snow, and rocky terrain. It also enhances engine braking for better control on downhill stretches.
  2. Before shifting to low range, adjust your tire pressure to match the terrain. Ideal psi ranges include 15-18psi for soft sand and dunes, and 20-25psi for mud or rocks. In some cases, you may need to deflate even further for optimal traction.
  3. To engage low range, bring your 4x4 to a complete stop, shift into Neutral or Park, and use the dial to switch from either 2H to 4L, or from 4H to 4L (if you were in 4H before).
  4. Look for an illuminated icon or '4L' on your instrument panel to confirm that 4L is active. Only proceed onto challenging terrain once you're certain that low-range is properly engaged.
  5. After confirming 4L engagement, shift into first gear, release the brake, and let the vehicle crawl up the hill or across the soft sand, depending on your terrain.
  6. In 4L/ low range, rely on your vehicle's power, apply gentle acceleration, use soft braking, and remember the secret: move at a slow pace. Shift gears as necessary, take your time, and proceed cautiously.

When to not use 4L/ low range

Low range is for slow, off-road use. Don't exceed 60 km/h for extended periods to avoid vehicle damage.

Switch back to 4H or 2H

After low-range driving, reinflate your tires to the appropriate pressure and switch back to 4H for firm surfaces or 2H for tarmac.

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