finding axle ratios - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 08-25-2008, 11:21 PM   #1
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Default finding axle ratios

anyone know of a way to find the axle codes without the sticker i cant find it anywhere in my car yes i even checked the trunk by/around the spare

is f17 for naturally aspriated and is fw2 for the supercharged bonne?

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Old 08-25-2008, 11:40 PM   #2
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well i found it just cant read it cuz its all faded
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Old 08-26-2008, 02:20 AM   #3
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there is commonly three final gear ratios that are in the bonneville i believe one of the big guys here did a technical post on it but the common one i know of spanning the 92-99 generation of bonnies are: 2.83, 3.05??? (not 100% positive on that one) and 2.93 standard on all supercharged bonnes

easest way to tell on a naturally aspirated car is go head to head with a SSEi (stock vs. stock) if you take the SSEi off the line then he smokes you after you gain a car then you probably have the 3.62 gears i know my stock SSEi get taken off the line by SE SLE and SSE(N/A) before they are out of the intersection though im half way up the side of them and climbing

this url links to specs on the 2000'* but they should be really similar in older models
https://www.gmforum.com/t275685/

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Old 08-26-2008, 08:20 AM   #4
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is there a way to check by the vin or looking under the car that anyone knows i gotta get it fixed and dont wanna buy the wrong part
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Old 08-26-2008, 10:08 AM   #5
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there will also be a metal tag on the passenger side rear of the Trans. with codes on it
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Old 08-26-2008, 08:15 PM   #6
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can i see it from underneath the car
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