Transmissions and Drivetrain Need help with your trans? Problems with your axle?

What gear oil for 9 bolt?

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Old Jul 15, 2016 | 05:56 PM
  #1  
MachinistMark's Avatar
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From: Sackville NS
Car: 85 Trans Am
Engine: 416 headed LG4 (i think)
Transmission: auto
Axle/Gears: 9 bolt, unknown ratio
What gear oil for 9 bolt?

Have 85 trans am with a 9 bolt. 150k or so miles.
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Old Jul 15, 2016 | 06:02 PM
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JamesC's Avatar
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: What gear oil for 9 bolt?

IIRC, you'll find what you're looking for in the following link:

https://www.thirdgen.org/forums/faq-...now-about.html

JamesC
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Old Jul 15, 2016 | 11:20 PM
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ray jr's Avatar
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Re: What gear oil for 9 bolt?

when i researched this i came up with a lot of guys using the torco rgo racing gear oil 85w140
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