Rear End Question!

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Mar 12, 2011 | 06:20 PM

vetteboy850

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From: Orlando Florida

Rear End Question!

I have a 98 Torch red c5.

Mods:
BBK shorty headers
UD pulley
K&N CAI
Borla Exhaust
Hypertech Programmer

I need to know what rear end I have 2.73? 3.15?

Mar 12, 2011 | 06:48 PM

bob guzzy

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From: shavertown Pa.

If it is a 6 speed it's a 3.42 but if it is an auto it can be either 2.73 or 3.15.

Check your RPO codes and if you have a G92 listed it's a 3.15

Mar 12, 2011 | 06:58 PM

vetteboy850

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From: Orlando Florida

It is an Auto. and how do i check that?

Mar 12, 2011 | 07:36 PM

momo20

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the RPO codes will be in your glove box on the bottom inside where it opens...or on the inside of your center console lid!

Mar 12, 2011 | 07:59 PM

0tom01ss

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From: delware county pa

if its an auto get a 3.43 diff popular upgrade, if its a stick 3.73's area great chioce

Mar 12, 2011 | 08:00 PM

vetteboy850

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From: Orlando Florida

Could not find it either in the glove box or center console lid.

Mar 12, 2011 | 08:01 PM

vetteboy850

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Quote:

Originally Posted by tom01ss

if its an auto get a 3.43 diff popular upgrade, if its a stick 3.73's area great chioce

I dont want to upgrade. I just want to know what rear end I have.

Mar 12, 2011 | 08:06 PM

Vetteman Jack

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For your codes, check under one of the rear compartment covers - it will be there. Then look to see if you have a G92 code for the performance axle option. If so, you will have a 3.15 rear ratio. Otherwise you have the 2.73s.

BTW - the RPO listing was never under the console lid.

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Mar 12, 2011 | 08:22 PM

vetteboy850

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From: Orlando Florida

That G92?

Last edited by vetteboy850; Mar 12, 2011 at 08:27 PM.

Mar 12, 2011 | 09:33 PM

#10

f6john

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From: Richmond, Ky

[QUOTE=vetteboy850;1577039060]

That G92?[/QUOT That's it, a 3:15 for you.

Mar 12, 2011 | 09:47 PM

#11

vetteboy850

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From: Orlando Florida

AWESOME!!!! I've always thought I had the 2.73 end.

Mar 13, 2011 | 03:24 AM

#12

Jistari

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From: . New York

You can also get on the highway, put a manual in 4th (or an auto in 3rd) and bring it up to 75 mph and look at the tachometer. Your rear end ratio will be your rpm's devided by 100 (2730 - 2.73, 3420 - 3.42) etc.