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Old 07-30-2018, 01:42 PM   #4
draino76
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Join Date: Dec 2004
Location: South Dakota
Posts: 127
Re: 2013 Tahoe for towing.

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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