LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Gears?

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Old 03-19-2008, 01:46 PM
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Default Gears?

I'm pretty sure that my T/A has 2.73's in it, well at least thats what I have been told. I was just wondering if I should go to maybe 3.73's and how much of a P.I.T.A. is it to change them.
Thanks,
Old 03-19-2008, 01:48 PM
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It's fairly involved and I would not recommend doing it yourself if you do not know what you are doing. You need special tools to align them properly.
Old 03-19-2008, 02:56 PM
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If u dont know what your doing dont try it...Gear Install isnt that expensive
Old 03-19-2008, 03:10 PM
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I would definetly upgrade to some 3.73's and like said I would have them installed professionally. It is very involved and if not set up correctly will cause problems.
Old 03-19-2008, 09:58 PM
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anybody have an idea of how much its goin to run me?
Old 03-19-2008, 10:41 PM
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Originally Posted by Huff035
anybody have an idea of how much its goin to run me?
around $300-400
Old 03-20-2008, 02:27 AM
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ya i got quoted for install from my neighbor that owns a tranny shop $200 for install, not including the price of the gears and shims and all that other stuff that would prob. need freshened up in there
Old 03-20-2008, 09:08 AM
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That's not a bad price. Another alternative would be to keep you eyes out for another rear end that already has 3.73 gears. I bought one a while back for only $250. Doing this would also allow you to have your old rear for a spare.
Old 03-20-2008, 09:59 AM
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Originally Posted by Huff035
anybody have an idea of how much its goin to run me?
2-4 hours at the shop rate.
I had a dealer quote me $400 for gears and $600 for the install about 9 years ago.
A chain shop wanted $1100 for the install alone.
I private shop did it for $225 and I picked up the gears for $200 or so at the time from Jegs I think.

As long as they shim it right, you'll be golden.
If not, it will howl. If you catch it, you can fix it without a problem. If you let it wear in, you're SOL
Old 03-20-2008, 02:35 PM
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With your setup you need to keep in mind that your 2.73s won't allow you to buy normal 3.37s, you'll need to buy Series 2 carrier gears, or go and buy a Series 3 carrier (which 3.23+ use) and then buy Series 3 gears.
Old 03-20-2008, 02:49 PM
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Just got mine done and they ran me $500 installed. And you will need the new carrier as well..not sure what that runs though cause I had stock 3.23's.
Old 03-20-2008, 04:21 PM
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I would have them installed professionally. 3.73 would be a good choice of gear. If you look in the glove box there will be a GU code. I forget the 2 codes numbers. I think GU2 2.73 GU5 3.23. I could be wrong.
Old 03-20-2008, 04:36 PM
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Originally Posted by Elliott's94Z
Just got mine done and they ran me $500 installed. And you will need the new carrier as well..not sure what that runs though cause I had stock 3.23's.
He doesn't HAVE to get a new carrier, they make gears for 2.73 carriers.


Originally Posted by chevy94c
I would have them installed professionally. 3.73 would be a good choice of gear. If you look in the glove box there will be a GU code. I forget the 2 codes numbers. I think GU2 2.73 GU5 3.23. I could be wrong.
GU2 is 2.73s, GU5 is 3.23 and GU6 is 3.42s
Old 03-20-2008, 09:52 PM
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Originally Posted by Formula350
He doesn't HAVE to get a new carrier, they make gears for 2.73 carriers.




GU2 is 2.73s, GU5 is 3.23 and GU6 is 3.42s

I guess I've been mislead then..sweet
Old 03-20-2008, 10:42 PM
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I own a speed shop in Oklahoma and I install gears on a regular basis and you would definitely want to have them professionally installed. I also stock many different kinds of gears weather you have a 2 or 3 series carrier I can sell you just about any ratio from 3.23 to 4.56 for around 145.00 a set plus shipping, and that goes for everyone.
Old 03-20-2008, 11:12 PM
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Just got mine back from the shop and they charged me 430 with tax.
Old 03-20-2008, 11:37 PM
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Anyone that would like a set of gears or any other performance parts just shoot me a pm.
Old 03-24-2008, 01:55 PM
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Do you have to buy a master install kit?
Old 03-24-2008, 03:01 PM
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Originally Posted by Silver2000WS-6
Do you have to buy a master install kit?
Wouldn't be a bad idea. So you get all new bearings and stuff.



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