Gear oil?

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This Machine Kills Fascists

Join Date: May 1st, 2009

Posts: 3402

Name: Vinnie K

Vehicle: 2007 sti, 2007 Silverado LBZ

Location: 48135

Occupation: Pharmacist

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#1

Gear oil?

June 20th, 2009, 01:41 PM

What weights do you recommend for running in both a 12 bolt and a 10 bolt, both posi?

I've got some 85w140 that's GL-5 and MT-1 rated, conventional valvoline.

And do I need to use a posi additive?

Thanks

Used to own a Firebird.
Tags: 12 bolt
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Join Date: April 5th, 2008

Posts: 3018

Name: Ricky

Vehicle: 95 Camaro Z28

Location: Bay City, MI

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#2

June 20th, 2009, 04:02 PM

I have Redline "Shockproof" gear oil in my car with some of their limited slip additive. In the truck I have Royal Purple 75w-90 in both differentials

2015 Silverado

Originally posted by JoeliusZ28

If you need 6 and half grand to break your tires loose you shouldnt be attempting a holeshot.
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