4th Gen rear axle codes

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May 1, 2005 | 11:16 AM

camaronewbie

Thread Starter

Supreme Member

Joined: Sep 2002

Posts: 9,192

Likes: 20

From: Cary, North Carolina

Car: 1992 RS

Engine: Carbed 350

Transmission: 700R4

Axle/Gears: 3.42 posi

4th Gen rear axle codes

Many swap in 4th gen rears - I was considering the same. Do the 4th gen axles have codes indicating whether posi or not, gear ratios, etc? Are these codes the same as 3rd gen codes? If not, anyone know a site to look up 4th gen axle codes?

May 31, 2005 | 11:35 AM

jconrad

Member

Joined: Oct 2003

Posts: 485

Likes: 0

From: Delta, PA

Car: 89 Firebird

Engine: L05 350 TBI

Transmission: 700r4-slippin' on it's last leg

www.camaroz28.com might have the info your looking for

RPO Code:

GU2 Axle, Rear 2.73 Ratio
GU4 Axle, Rear 3.08 Ratio
GU5 Axle, Rear 3.23 Ratio
GU6 Axle, Rear 3.42 Ratio
G80 Axle, Rear Positraction (Limited Slip)

Last edited by jconrad; May 31, 2005 at 11:40 AM.