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How can I tell...

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Old Dec 5, 2002 | 04:52 PM
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Default How can I tell...

How can I tell what rear end and what gears I have?..It's a 99 T/A w/TCS
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Old Dec 5, 2002 | 09:27 PM
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Default Re: How can I tell...

There will be an axle code on the options sheet on the end of the drivers door. Look for a "GU" code (like GU2, GU5, etc) and post it here of check with the dealer, I can't seem to find my list of codes and axle ratios. I'm sure someone will hop in here and bail me out though.....
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Old Dec 5, 2002 | 09:50 PM
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Default Re: How can I tell...

Thanks the code is GU5
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Old Dec 5, 2002 | 09:55 PM
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Default Re: How can I tell...

3.42 I think? On LS1.com theres a F.A.Q. section that may have more info for you. Hope that helps. Did you buy the car brand new?
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Old Dec 5, 2002 | 10:00 PM
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Default Re: How can I tell...

actually it's 3.23 I found this site with all the GM RPO codes...they have all the codes except for.. ready for this LS1 <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> Thanks anyway the site is http://www.wiu.edu/users/muwtj1/rpocodes.htm

<small>[ December 05, 2002, 10:06 PM: Message edited by: Mustang5Ohater ]</small>
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Old Dec 5, 2002 | 10:01 PM
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Default Re: How can I tell...

could always do old school method of counting driveshaft rvolutions to wheel revolutions, will get ballpark
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Old Dec 5, 2002 | 10:09 PM
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Default Re: How can I tell...

<img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" />
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Old Dec 6, 2002 | 12:07 AM
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Default Re: How can I tell...

GU2=2.73
GU5=3.23
GU6=3.42
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Old Dec 6, 2002 | 08:28 AM
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Default Re: How can I tell...

Would I see any big improvement with 3.42's? The car is mostly stock for now.

<small>[ December 06, 2002, 08:02 PM: Message edited by: Mustang5Ohater ]</small>
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Old Dec 6, 2002 | 10:00 AM
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Default Re: How can I tell...

Going from 3.23s to 3.42s would be only a small gain.

What TQ converter are you running? That's where the gains are to be made.
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Old Dec 6, 2002 | 07:37 PM
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Default Re: How can I tell...

Whatever torque converter comes stock.. not sure what the stall is for stock <img border="0" title="" alt="[Sad]" src="gr_sad.gif" /> what would I need to upgrade to see a difference?

<small>[ December 06, 2002, 07:40 PM: Message edited by: Mustang5Ohater ]</small>
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