C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Tech help for gears please.....

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Old Aug 10, 2009 | 07:21 PM
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Default Tech help for gears please.....

I have a 93 with 259 gears .I want to go to 373's.How do I know which gear variation to order,which housing do I have?Is the info on my spec sheet?If not then where?

Last edited by ks5shooter; Aug 10, 2009 at 07:24 PM.
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Old Aug 10, 2009 | 08:14 PM
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All auto cars have Dana 36.
You need a Dana 36 gear set with "thick" gears to reuse your existing 2 series carrier.

http://www.corvetterecycling.com/category_s/441.htm

Last edited by rodj; Aug 10, 2009 at 08:16 PM.
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Old Aug 11, 2009 | 12:36 AM
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Originally Posted by rodj
All auto cars have Dana 36.
You need a Dana 36 gear set with "thick" gears to reuse your existing 2 series carrier.

http://www.corvetterecycling.com/category_s/441.htm

You've got a 2 series D36. If it came stock with a 3.07 (I believe the RPO code was G44 & G92), you'd have the 3 series.

You can get 3.75:1 gears for either one, but they are not interchangeable. A 2 series needs a thicker ring gear than a 3 series.

The D44 only came with manual transmissions.
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Old Aug 11, 2009 | 07:17 AM
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Originally Posted by reoch999

You've got a 2 series D36. If it came stock with a 3.07 (I believe the RPO code was G44 & G92), you'd have the 3 series.

You can get 3.75:1 gears for either one, but they are not interchangeable. A 2 series needs a thicker ring gear than a 3 series.

The D44 only came with manual transmissions.
My spec sheet says 259's where do I find the RPO code ?thanks
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Old Aug 11, 2009 | 12:03 PM
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Originally Posted by ks5shooter
My spec sheet says 259's where do I find the RPO code ?thanks
My RPO codes are on a sticker in the center console, under the arm rest.
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Old Aug 13, 2009 | 07:16 AM
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Thanks all much appreciated got to go get my gears
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