does anyone know what gear oil I need

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Aug 28, 2011 | 10:01 PM

Rij1

Thread Starter

Registered User

Joined: Aug 2011

Posts: 180

From: Ventura, Ca

does anyone know what gear oil I need

I have a 1994 camaro z28 and need to change my gear oil in my differential and need to know what I need to put in it and the additive. also what kind of posi and gear ratio do I have?

Aug 29, 2011 | 06:47 AM

shoebox

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Joined: Dec 1969

Posts: 27,729

From: Little Rock, AR

Re: does anyone know what gear oil I need

Your owner's manual tells you the info on the gear oil. You'll need about 2 quarts (3.5 pt.). Fill to the level of the bottom of the fill hole.

Quote:

Originally Posted by owner's manual

Maintenance Schedule
Section D: Recommended Fluids & Lubricants
Rear Axle (Limited- Slip Differential)
Axle Lubricant (GM Part No. 12345977) or SAE 80W-90 GL-5 Gear Lubricant, and Limited-Slip Differential) Lubricant Additive (GM Part No. 1052358 or equivalent) where required. See %u201CRear Axle%u201D in the Index.

The SPID sticker in the glove box tells you the RPO option code for the gear ratio.

Axle codes
GU2 : AXLE REAR, 2.73 RATIO

GU4 : AXLE REAR, 3.08 RATIO (V6)

GU5 : AXLE REAR, 3.23 RATIO

GU6 : AXLE REAR, 3.42 RATIO

Last edited by shoebox; Aug 29, 2011 at 07:03 AM.