GU5 Rear Axle Performance

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06-19-2008, 10:15 AM

Detector

In the Staging Lanes

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Join Date: Mar 2008

Posts: 44

GU5 Rear Axle Performance

I've noticed my 1994 Camaro(LT1 conversion) has the GU5 RPO code which means "Rear Axle Performance." Just what is this option?

Thanks

06-19-2008, 07:18 PM

02StanGT

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Join Date: Sep 2005

Location: Granbury, TX

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RE: GU5 Rear Axle Performance

GU5 means you have 3.23 gear ratio in the rearend.

06-19-2008, 08:14 PM

aleksandr

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RE: GU5 Rear Axle Performance

Doesn't it also mean he has a limited slip differential?

06-19-2008, 08:19 PM

02StanGT

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Join Date: Sep 2005

Location: Granbury, TX

Posts: 4,053

RE: GU5 Rear Axle Performance

I think the only ones that didn't come with one, were the GU4 (3.08) V6 Camaros. That is if I'm remembering correctly.

06-20-2008, 12:30 AM

95slvrZ28

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Join Date: Aug 2006

Location: Boulder, CO

Posts: 4,496

RE: GU5 Rear Axle Performance

I just thought I would confirm what Stan is saying...all Z28, SS and RS (or Y87) cars came with a posi. So only the base (3.08, GU4) cars came without it.

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