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How to diagnose a rear end differential.
How to find the pinion seal.
If you have a vehicle equipped with automatic locking hubs, and sometimes they don't engage, or grind when they do, try out this easy diagnostic.
Watch this video to learn the difference between all wheel drive and four wheel drive!
What's a transfer case? What's a differential? If you want answers to these questions, check out this 1A Auto video on 4 wheel drive train components!
Len shows you how to find the problem that is causing your 4 wheel drive system to be stuck in 4WD
Cristian explains the common failure points in the Ford 4WD system ranging from the simple, like the selector switch, all the way to the differential internals!
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