2.84 > 3.06? - 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 03-02-2005, 10:55 AM   #1
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Default 2.84 > 3.06?

Just wondering how much of a difference I might feel going from my vanilla '93 SE to a possible '93 SSE N/A. I'm to understand the axel ratio in mine is most likely 2.84, while the SSE will have a 3.06 ratio. How much difference can I expect to feel? Thanks again in advance to everyone who posts
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Old 03-02-2005, 11:34 AM   #2
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I had the 2.84 in my 93 and my 99 has the 3.08. The only differnce I've observed is that my 93 got better gas mileage than my 99 does. That could be attributed to many other things than gear ratio (namely L36 vs. L27). I actually preferred the 2.84, though. I do 90% highway driving so it kept the RPMs lower. I'm not one to ever romp on the peddle so torque isn't important to me....gas mileage and comfort is!
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Old 03-02-2005, 11:47 AM   #3
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It makes a BIG difference in the Series 1 L27. 2.84 cars go from 0-60 in the 10 second catigory. 3.06 cars go from 0-60mph in the mid 8s. The 3.06 is much better for stronger takeoffs. And its 3.06 BTW, not 3.08
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Old 03-02-2005, 12:02 PM   #4
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I was just reading thats its fairly simple to change it to a 3.73:1 ratio...that would be a load of fun but its not from an HD transmission.
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Old 03-02-2005, 12:10 PM   #5
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Default Re: 2.84 > 3.08?

Quote:
Originally Posted by Krazy Kyle
Just wondering how much of a difference I might feel going from my vanilla '93 SE to a possible '93 SSE N/A. I'm to understand the axel ratio in mine is most likely 2.84, while the SSE will have a 3.08 ratio. How much difference can I expect to feel? Thanks again in advance to everyone who posts
Kyle, your car and an SSE are both 3.06, not 2.84. 2.84 is a LeSabre. Bonnevilles got the 3.06, but the supercharged models got a 2.97 for our generation.
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Old 03-02-2005, 12:21 PM   #6
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Default Re: 2.84 > 3.08?

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Originally Posted by willwren
Quote:
Originally Posted by Krazy Kyle
Just wondering how much of a difference I might feel going from my vanilla '93 SE to a possible '93 SSE N/A. I'm to understand the axel ratio in mine is most likely 2.84, while the SSE will have a 3.08 ratio. How much difference can I expect to feel? Thanks again in advance to everyone who posts
Kyle, your car and an SSE are both 3.06, not 2.84. 2.84 is a LeSabre. Bonnevilles got the 3.06, but the supercharged models got a 2.97 for our generation.
Don confirmed that my 93 was a 2.84... It was a column shift.
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Old 03-02-2005, 12:25 PM   #7
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Could be, but to the best of my knowledge, ALL SSE'* are 3.06, and at least MOST SE'* and SLE'*.

I know the 2.84 was common in most LeSabre'* with the 4T60. I gained all this knowledge looking for a salvage trans for Jseabert.
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Old 03-02-2005, 12:27 PM   #8
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Quote:
Originally Posted by willwren
Could be, but to the best of my knowledge, ALL SSE'* are 3.06, and at least MOST SE'* and SLE'*.

I know the 2.84 was common in most LeSabre'* with the 4T60. I gained all this knowledge looking for a salvage trans for Jseabert.
Agreed. The 2.84 IS rare in a Bonnie. But, prefered for my use of the car.
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Old 03-02-2005, 12:59 PM   #9
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Ya figure a few years of the Bonnies had some weird configurations. It'* possible a high trim level like an SSE would have the 'highway' gearing.
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Old 03-02-2005, 01:06 PM   #10
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it all depends on what RPO Kyle has, i am to understand the Most SE/SLE and the SSE NA has the 3.06
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