How important is a differential lock on a 4wd Tacoma?
I have a 2001 Tacoma 2.7L, 5 speed. I noticed a button with a built in LED light, to the left of the steering wheel, it is not attached to anything, discovered this is probably if you add a differential lock. I'm looking for travel in some deep sand, and through occasional mud in forest roads, but nothing extreme. Will the granny gears be enough, or should I rush headlong to some shop, wallet in hand? Also, I see from some research here that the lock can be hazardous to the drive train if not used carefully...
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