2.73 to 3.23

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Mar 17, 2002 | 08:57 PM

L.I.N.Y.92CAMARO

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2.73 to 3.23

How much would my speedometer be off if i changed my rear gears to 3.23?

Mar 18, 2002 | 12:02 AM

89 Iroc Z

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Joined: Aug 2001

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From: Costal Alabama

Car: 1989 Iroc-Z

Engine: 350, ZZ4 equivalent

Transmission: Pro-Built Road Race 700R4

Axle/Gears: 3.23 Dana 44

Well at lower speeds it will be less off. You can figure it out using this simple formula:

Old gear ratio/New gear ration X speed speedo says

2.73/3.23*60MPH = 51 MPH

So that means when your speedo says 60 MPH your real speed will be 51 MPH

here are a few more:

2.73/3.23*20MPH =17 MPH
2.73/3.23*40MPH =34 MPH
2.73/3.23*80MPH =67.5 MPH
2.73/3.23*100MPH = 84.5 MPH

Mar 19, 2002 | 05:46 AM

88transam5.0

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Joined: Nov 2000

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From: L.C. TX USA

Hi, I don't know if your wheels are 17's which mine are 45/245/17 I did this swap a while back from 2.73 to 3.23 and if your present gear combo is 17T/38T then you will need a driven gear 44T. But if you have 16's wheel then this won't help.