THE AXLES ARE PROBABLY THE MOST ABUSED components on our 4×4s. We regularly overload them with heavy payloads and trailers, expect them to survive with larger-than-stock tires, sink them in deep mud and water, and in most cases, we rarely maintain them. It's not at all uncommon for an axle to go 100,000 miles or more without so much as an oil change. We usually only pay them any attention when something goes really wrong. So in the spirit of sticking with the no-maintenance theme, there are a few tips, tricks, and upgrades you can implement to increase the durability and service life of your axles.
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