This is a long, wordy post. Sorry, and enjoy the story. As we drove the several-hundred-miles to eastern Oregon on our recent trip to Owyhee and the Alvord Playa, all was not well with the Tacoma. Four times - each time after three uninterrupted hours of driving - there would be a sudden sound of something that sounded like a bearing "spinning up." The sound was disconcerting enough that I'd immediately take my foot off the gas, and the sound would slow - eventually ending in a clunk and everything would be "back to normal." Everything that is except my…
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February 21, 2018. Not all that long ago, the truck got a gear change - from the 4.10 factory gears to 4.88's - meaning that it's now easier on the engine to turn the bigger tires as it climbs up hills, over rocks, and generally towards adventure. Within a couple weeks of the gear change, I'd driven far enough to get 500 miles of break-in complete on the rear diff and changed the oil - and everything there seemed A-OK, which was nice. And then on our trip to Death Valley, we ran as much as we could in 4WD…
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Having travelled the requisite 500 miles to break in my new 4.88 gears (you may want to read "New Gears - 4.88's and an ARB front locker" and "the first 500 mile break-in" if you haven't already), it was high time to change the oil in the rear diff - hopefully uneventfully - to clean out any metal and other gunk that may have been present as a result of the break-in. Toyota conveniently calls for 90W oil in the differentials, and that's hard to come by - at least for me, locally - so I decided on Lucas 80W-90,…
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