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Re: 2013 Tahoe for towing.
Quote:
Originally Posted by draino76
It's factory exhaust in like new condition. After unhooking the camper the highest temp I saw on the diff was 150 and that was in the mountains, but that was after I put Lucas 80w 140 in it. I ran it about a 900 miles that way so I think the bearings are not the problem. Whines like crazy and there was very easy to see grind marks on the ring and pinion gears.
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Ditch the Lucas. Mobil1 synthetic will give you better protection than the Lucas. If you got it hot enough to boil the oil then the bearings are all toast too.
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87 R30 CC Dually, TBI 454, NV4500, zero rust barn find
87 Jeep Grand Wagoneer, 6.5 turbodiesel, 700R4
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