Thread: 12 bolt upgrade to posi parts list
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Old 01-22-2022, 10:16 PM   #4
AllGoNoShow
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Join Date: Feb 2020
Location: Rochester, NY
Posts: 200
Re: 12 bolt upgrade to posi parts list
Just an FYI as I have the same diff, but Detroit specifically says not to use the limited slip additive with the Truetrac (just use GL5 like Valvoline).
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