LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

3.73 Install what fluid to use?

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Old 06-18-2003, 06:18 AM
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3.73 Install what fluid to use?

My gears are going in on friday I was wondering what diff fluid to use 75w90?
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Old 06-18-2003, 08:10 AM
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What type of posi unit? SOme require regular gear oil, some work with synthetic... All of them want the GM additive.
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Old 06-18-2003, 02:33 PM
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Redline 75W90 and it already contains the limited-slip additive
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Old 06-18-2003, 02:34 PM
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Get the GM stuff also.
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