Driving In 4H At Speed With chain-driven transfer cases being so ubiquitous, let's look at how they work and if you can put on 4WD at a higher speed. While my '96 Cherokee's owner's manual doesn't ...

Let's start with the first two. If you've got a vehicle that offers two-wheel-drive or four-wheel-drive auto, then most of the time you may as well use the 4WD Auto setting. It's fine for dry pavement ...

The 2025 Chevrolet Silverado HD Owner's Manual, for instance, tells owners that its Auto-Trak 4WD system typically requires transfer case fluid replacement every 50,000 miles, while under "severe ...