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12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

dana 70

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Old 08-28-2011, 11:10 AM
trentonwest29's Avatar
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do i have to put any kind of additive in the gear oil in my rearend to keep it from locking up?
 
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Old 08-28-2011, 03:21 PM
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Depends if you have a limited slip diff or not. If you do an additive is needed to keep the clutches functioning correctly. Some gear oils have the additive already in them so nothing else is needed.
 
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Old 08-28-2011, 04:17 PM
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i do have a limited slip diff what kind of additive do i need to look for?
 
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Old 08-29-2011, 11:35 AM
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I believe its called posi-trac additive or something like that. Most parts stores will have it!
 
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Old 08-29-2011, 01:40 PM
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Originally Posted by 1AMatt
I believe its called posi-trac additive or something like that. Most parts stores will have it!
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