L.W. \(Bill\) Hughes III

Like: http://www.oly4x4.com/gearratios.htm
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

"c" <c@me.org> wrote in message
news:46f46642$0$17112$4c368faf@roadrunner.com...
> I'm not disputing that those gear ratios would work the best, but you
> stated that they would be closest to stock, and that is simply not true.
> It is a simple mathematical equation to calculate the proper gear ratio,
> and nothing more.
>
> Chris



--
Posted via a free Usenet account from http://www.teranews.com

Mike Romain

She had 215's....

You are wrong.

Mike

c wrote:
> I'm not disputing that those gear ratios would work the best, but you
> stated that they would be closest to stock, and that is simply not true.
> It is a simple mathematical equation to calculate the proper gear ratio,
> and nothing more.
>
> Chris
>
> Carl S wrote:
>> Sorry, but it's widely held that 4.10 is correct for 31/32, 4.56 is
>> for 33's and 4.88 for 35's.
>>
>> Carl
>>
>>
>> "c" <c@me.org> wrote in message
>> news:46f41cce$0$11026$4c368faf@roadrunner.com...
>>> Sorry, but that is incorrect. Her original gear ratio is 3.07 and her
>>> tires were 29". It's s simple ratio between the tire diameter and
>>> gear ratio to maintain the same RPM. 29/3.07=9.45. If she maintains
>>> that same ratio between tire diameter and gear ratio, her RPM will
>>> remain the same. To calculate the gear ratio, she just needs to
>>> divide the tire diameter by 9.45 to get the proper gear ratio if she
>>> wants to achieve the same RPM as original.
>>>
>>> for 31s it would be 3.26
>>> for 33s it would be 3.49
>>>
>>> Chris
>>>
>>> Carl S wrote:
>>>> 4.56 is as close as it gets to how it was stock.
>>>>
>>>> Carl
>>>>
>>>> "Tracie" <brainart@upstate.edu> wrote in message
>>>> news:1190386700.755334.108510@19g2000hsx.googlegro ups.com...
>>>>> I have posted this once today, but for some reason it did not post.
>>>>> If anyone finds it, sorry for the duplicate post.
>>>>>
>>>>> Anyhoo, I definitely want to re-gear but I am not sure if the 3.73 or
>>>>> the 4.11 ratio would be better for me. I currently have 31" BFG All
>>>>> Terrain T/A KOs, but will definitely upgrade to a 33" tire of some
>>>>> sort in the future when these wear out. I will never upgrade to
>>>>> bigger than a 33" tire. As for off-roading, I do some light trail
>>>>> riding and the occasional hop in the mud puddle when I find one that
>>>>> looks fun. 80% of my driving is highway at approximately 70 miles
>>>>> round trip at a speed of anywhere from 60-70 mph. The other 20% is
>>>>> split between city driving (10%), and off-roading (10%). My main goal
>>>>> is to get my Jeep to drive as close as possible to the way it did bone
>>>>> stock (being able to use my 6th gear on the freeway) and to prevent
>>>>> excessive wear and tear on my clutch and engine parts. Someone please
>>>>> help! : D
>>>>>
>>>>> '06 TJ (4.0L with I-6)
>>>>> 6 speed manual
>>>>> Dana 30 front/35 rear
>>>>> current 3.07s
>>>>>
>>>>> P.S. Would I also need to upgrade my Dana 30/35 to a bigger one (like
>>>>> 44s)? I don't know if this makes any difference as far as which gear
>>>>> ratio to go with, but where I live (upstate NY), there can be quite a
>>>>> bit of snow from Dec. - Apr.
>>>>>
>>

Mike Romain

She had 215's....

You are wrong.

Mike

c wrote:
> I'm not disputing that those gear ratios would work the best, but you
> stated that they would be closest to stock, and that is simply not true.
> It is a simple mathematical equation to calculate the proper gear ratio,
> and nothing more.
>
> Chris
>
> Carl S wrote:
>> Sorry, but it's widely held that 4.10 is correct for 31/32, 4.56 is
>> for 33's and 4.88 for 35's.
>>
>> Carl
>>
>>
>> "c" <c@me.org> wrote in message
>> news:46f41cce$0$11026$4c368faf@roadrunner.com...
>>> Sorry, but that is incorrect. Her original gear ratio is 3.07 and her
>>> tires were 29". It's s simple ratio between the tire diameter and
>>> gear ratio to maintain the same RPM. 29/3.07=9.45. If she maintains
>>> that same ratio between tire diameter and gear ratio, her RPM will
>>> remain the same. To calculate the gear ratio, she just needs to
>>> divide the tire diameter by 9.45 to get the proper gear ratio if she
>>> wants to achieve the same RPM as original.
>>>
>>> for 31s it would be 3.26
>>> for 33s it would be 3.49
>>>
>>> Chris
>>>
>>> Carl S wrote:
>>>> 4.56 is as close as it gets to how it was stock.
>>>>
>>>> Carl
>>>>
>>>> "Tracie" <brainart@upstate.edu> wrote in message
>>>> news:1190386700.755334.108510@19g2000hsx.googlegro ups.com...
>>>>> I have posted this once today, but for some reason it did not post.
>>>>> If anyone finds it, sorry for the duplicate post.
>>>>>
>>>>> Anyhoo, I definitely want to re-gear but I am not sure if the 3.73 or
>>>>> the 4.11 ratio would be better for me. I currently have 31" BFG All
>>>>> Terrain T/A KOs, but will definitely upgrade to a 33" tire of some
>>>>> sort in the future when these wear out. I will never upgrade to
>>>>> bigger than a 33" tire. As for off-roading, I do some light trail
>>>>> riding and the occasional hop in the mud puddle when I find one that
>>>>> looks fun. 80% of my driving is highway at approximately 70 miles
>>>>> round trip at a speed of anywhere from 60-70 mph. The other 20% is
>>>>> split between city driving (10%), and off-roading (10%). My main goal
>>>>> is to get my Jeep to drive as close as possible to the way it did bone
>>>>> stock (being able to use my 6th gear on the freeway) and to prevent
>>>>> excessive wear and tear on my clutch and engine parts. Someone please
>>>>> help! : D
>>>>>
>>>>> '06 TJ (4.0L with I-6)
>>>>> 6 speed manual
>>>>> Dana 30 front/35 rear
>>>>> current 3.07s
>>>>>
>>>>> P.S. Would I also need to upgrade my Dana 30/35 to a bigger one (like
>>>>> 44s)? I don't know if this makes any difference as far as which gear
>>>>> ratio to go with, but where I live (upstate NY), there can be quite a
>>>>> bit of snow from Dec. - Apr.
>>>>>
>>

Mike Romain

She had 215's....

You are wrong.

Mike

c wrote:
> I'm not disputing that those gear ratios would work the best, but you
> stated that they would be closest to stock, and that is simply not true.
> It is a simple mathematical equation to calculate the proper gear ratio,
> and nothing more.
>
> Chris
>
> Carl S wrote:
>> Sorry, but it's widely held that 4.10 is correct for 31/32, 4.56 is
>> for 33's and 4.88 for 35's.
>>
>> Carl
>>
>>
>> "c" <c@me.org> wrote in message
>> news:46f41cce$0$11026$4c368faf@roadrunner.com...
>>> Sorry, but that is incorrect. Her original gear ratio is 3.07 and her
>>> tires were 29". It's s simple ratio between the tire diameter and
>>> gear ratio to maintain the same RPM. 29/3.07=9.45. If she maintains
>>> that same ratio between tire diameter and gear ratio, her RPM will
>>> remain the same. To calculate the gear ratio, she just needs to
>>> divide the tire diameter by 9.45 to get the proper gear ratio if she
>>> wants to achieve the same RPM as original.
>>>
>>> for 31s it would be 3.26
>>> for 33s it would be 3.49
>>>
>>> Chris
>>>
>>> Carl S wrote:
>>>> 4.56 is as close as it gets to how it was stock.
>>>>
>>>> Carl
>>>>
>>>> "Tracie" <brainart@upstate.edu> wrote in message
>>>> news:1190386700.755334.108510@19g2000hsx.googlegro ups.com...
>>>>> I have posted this once today, but for some reason it did not post.
>>>>> If anyone finds it, sorry for the duplicate post.
>>>>>
>>>>> Anyhoo, I definitely want to re-gear but I am not sure if the 3.73 or
>>>>> the 4.11 ratio would be better for me. I currently have 31" BFG All
>>>>> Terrain T/A KOs, but will definitely upgrade to a 33" tire of some
>>>>> sort in the future when these wear out. I will never upgrade to
>>>>> bigger than a 33" tire. As for off-roading, I do some light trail
>>>>> riding and the occasional hop in the mud puddle when I find one that
>>>>> looks fun. 80% of my driving is highway at approximately 70 miles
>>>>> round trip at a speed of anywhere from 60-70 mph. The other 20% is
>>>>> split between city driving (10%), and off-roading (10%). My main goal
>>>>> is to get my Jeep to drive as close as possible to the way it did bone
>>>>> stock (being able to use my 6th gear on the freeway) and to prevent
>>>>> excessive wear and tear on my clutch and engine parts. Someone please
>>>>> help! : D
>>>>>
>>>>> '06 TJ (4.0L with I-6)
>>>>> 6 speed manual
>>>>> Dana 30 front/35 rear
>>>>> current 3.07s
>>>>>
>>>>> P.S. Would I also need to upgrade my Dana 30/35 to a bigger one (like
>>>>> 44s)? I don't know if this makes any difference as far as which gear
>>>>> ratio to go with, but where I live (upstate NY), there can be quite a
>>>>> bit of snow from Dec. - Apr.
>>>>>
>>

Mike Romain

She had 215's....

You are wrong.

Mike

c wrote:
> I'm not disputing that those gear ratios would work the best, but you
> stated that they would be closest to stock, and that is simply not true.
> It is a simple mathematical equation to calculate the proper gear ratio,
> and nothing more.
>
> Chris
>
> Carl S wrote:
>> Sorry, but it's widely held that 4.10 is correct for 31/32, 4.56 is
>> for 33's and 4.88 for 35's.
>>
>> Carl
>>
>>
>> "c" <c@me.org> wrote in message
>> news:46f41cce$0$11026$4c368faf@roadrunner.com...
>>> Sorry, but that is incorrect. Her original gear ratio is 3.07 and her
>>> tires were 29". It's s simple ratio between the tire diameter and
>>> gear ratio to maintain the same RPM. 29/3.07=9.45. If she maintains
>>> that same ratio between tire diameter and gear ratio, her RPM will
>>> remain the same. To calculate the gear ratio, she just needs to
>>> divide the tire diameter by 9.45 to get the proper gear ratio if she
>>> wants to achieve the same RPM as original.
>>>
>>> for 31s it would be 3.26
>>> for 33s it would be 3.49
>>>
>>> Chris
>>>
>>> Carl S wrote:
>>>> 4.56 is as close as it gets to how it was stock.
>>>>
>>>> Carl
>>>>
>>>> "Tracie" <brainart@upstate.edu> wrote in message
>>>> news:1190386700.755334.108510@19g2000hsx.googlegro ups.com...
>>>>> I have posted this once today, but for some reason it did not post.
>>>>> If anyone finds it, sorry for the duplicate post.
>>>>>
>>>>> Anyhoo, I definitely want to re-gear but I am not sure if the 3.73 or
>>>>> the 4.11 ratio would be better for me. I currently have 31" BFG All
>>>>> Terrain T/A KOs, but will definitely upgrade to a 33" tire of some
>>>>> sort in the future when these wear out. I will never upgrade to
>>>>> bigger than a 33" tire. As for off-roading, I do some light trail
>>>>> riding and the occasional hop in the mud puddle when I find one that
>>>>> looks fun. 80% of my driving is highway at approximately 70 miles
>>>>> round trip at a speed of anywhere from 60-70 mph. The other 20% is
>>>>> split between city driving (10%), and off-roading (10%). My main goal
>>>>> is to get my Jeep to drive as close as possible to the way it did bone
>>>>> stock (being able to use my 6th gear on the freeway) and to prevent
>>>>> excessive wear and tear on my clutch and engine parts. Someone please
>>>>> help! : D
>>>>>
>>>>> '06 TJ (4.0L with I-6)
>>>>> 6 speed manual
>>>>> Dana 30 front/35 rear
>>>>> current 3.07s
>>>>>
>>>>> P.S. Would I also need to upgrade my Dana 30/35 to a bigger one (like
>>>>> 44s)? I don't know if this makes any difference as far as which gear
>>>>> ratio to go with, but where I live (upstate NY), there can be quite a
>>>>> bit of snow from Dec. - Apr.
>>>>>
>>

c

OK, so her tires are 27.6" instead of 29". The same formula still applies.

27.6" tires with 3.07 gears will turn the same RPM as 33" tires with
3.67 gears. This is HARDLY the same as the 4.56 gears that Carl said
were, and I quote "4.56 is as close as it gets to how it was stock". I
was wrong because I had the wrong original tire size. But even at that
my calculations are much closer than saying that 4.56 gears would be as
close to stock as her original setup.


Mike Romain wrote:
> She had 215's....
>
> You are wrong.
>
> Mike
>
> c wrote:
>> I'm not disputing that those gear ratios would work the best, but you
>> stated that they would be closest to stock, and that is simply not
>> true. It is a simple mathematical equation to calculate the proper
>> gear ratio, and nothing more.
>>
>> Chris
>>
>> Carl S wrote:
>>> Sorry, but it's widely held that 4.10 is correct for 31/32, 4.56 is
>>> for 33's and 4.88 for 35's.
>>>
>>> Carl
>>>
>>>
>>> "c" <c@me.org> wrote in message
>>> news:46f41cce$0$11026$4c368faf@roadrunner.com...
>>>> Sorry, but that is incorrect. Her original gear ratio is 3.07 and
>>>> her tires were 29". It's s simple ratio between the tire diameter
>>>> and gear ratio to maintain the same RPM. 29/3.07=9.45. If she
>>>> maintains that same ratio between tire diameter and gear ratio, her
>>>> RPM will remain the same. To calculate the gear ratio, she just
>>>> needs to divide the tire diameter by 9.45 to get the proper gear
>>>> ratio if she wants to achieve the same RPM as original.
>>>>
>>>> for 31s it would be 3.26
>>>> for 33s it would be 3.49
>>>>
>>>> Chris
>>>>
>>>> Carl S wrote:
>>>>> 4.56 is as close as it gets to how it was stock.
>>>>>
>>>>> Carl
>>>>>
>>>>> "Tracie" <brainart@upstate.edu> wrote in message
>>>>> news:1190386700.755334.108510@19g2000hsx.googlegro ups.com...
>>>>>> I have posted this once today, but for some reason it did not post.
>>>>>> If anyone finds it, sorry for the duplicate post.
>>>>>>
>>>>>> Anyhoo, I definitely want to re-gear but I am not sure if the 3.73 or
>>>>>> the 4.11 ratio would be better for me. I currently have 31" BFG All
>>>>>> Terrain T/A KOs, but will definitely upgrade to a 33" tire of some
>>>>>> sort in the future when these wear out. I will never upgrade to
>>>>>> bigger than a 33" tire. As for off-roading, I do some light trail
>>>>>> riding and the occasional hop in the mud puddle when I find one that
>>>>>> looks fun. 80% of my driving is highway at approximately 70 miles
>>>>>> round trip at a speed of anywhere from 60-70 mph. The other 20% is
>>>>>> split between city driving (10%), and off-roading (10%). My main
>>>>>> goal
>>>>>> is to get my Jeep to drive as close as possible to the way it did
>>>>>> bone
>>>>>> stock (being able to use my 6th gear on the freeway) and to prevent
>>>>>> excessive wear and tear on my clutch and engine parts. Someone
>>>>>> please
>>>>>> help! : D
>>>>>>
>>>>>> '06 TJ (4.0L with I-6)
>>>>>> 6 speed manual
>>>>>> Dana 30 front/35 rear
>>>>>> current 3.07s
>>>>>>
>>>>>> P.S. Would I also need to upgrade my Dana 30/35 to a bigger one
>>>>>> (like
>>>>>> 44s)? I don't know if this makes any difference as far as which gear
>>>>>> ratio to go with, but where I live (upstate NY), there can be quite a
>>>>>> bit of snow from Dec. - Apr.
>>>>>>
>>>

c

OK, so her tires are 27.6" instead of 29". The same formula still applies.

27.6" tires with 3.07 gears will turn the same RPM as 33" tires with
3.67 gears. This is HARDLY the same as the 4.56 gears that Carl said
were, and I quote "4.56 is as close as it gets to how it was stock". I
was wrong because I had the wrong original tire size. But even at that
my calculations are much closer than saying that 4.56 gears would be as
close to stock as her original setup.


Mike Romain wrote:
> She had 215's....
>
> You are wrong.
>
> Mike
>
> c wrote:
>> I'm not disputing that those gear ratios would work the best, but you
>> stated that they would be closest to stock, and that is simply not
>> true. It is a simple mathematical equation to calculate the proper
>> gear ratio, and nothing more.
>>
>> Chris
>>
>> Carl S wrote:
>>> Sorry, but it's widely held that 4.10 is correct for 31/32, 4.56 is
>>> for 33's and 4.88 for 35's.
>>>
>>> Carl
>>>
>>>
>>> "c" <c@me.org> wrote in message
>>> news:46f41cce$0$11026$4c368faf@roadrunner.com...
>>>> Sorry, but that is incorrect. Her original gear ratio is 3.07 and
>>>> her tires were 29". It's s simple ratio between the tire diameter
>>>> and gear ratio to maintain the same RPM. 29/3.07=9.45. If she
>>>> maintains that same ratio between tire diameter and gear ratio, her
>>>> RPM will remain the same. To calculate the gear ratio, she just
>>>> needs to divide the tire diameter by 9.45 to get the proper gear
>>>> ratio if she wants to achieve the same RPM as original.
>>>>
>>>> for 31s it would be 3.26
>>>> for 33s it would be 3.49
>>>>
>>>> Chris
>>>>
>>>> Carl S wrote:
>>>>> 4.56 is as close as it gets to how it was stock.
>>>>>
>>>>> Carl
>>>>>
>>>>> "Tracie" <brainart@upstate.edu> wrote in message
>>>>> news:1190386700.755334.108510@19g2000hsx.googlegro ups.com...
>>>>>> I have posted this once today, but for some reason it did not post.
>>>>>> If anyone finds it, sorry for the duplicate post.
>>>>>>
>>>>>> Anyhoo, I definitely want to re-gear but I am not sure if the 3.73 or
>>>>>> the 4.11 ratio would be better for me. I currently have 31" BFG All
>>>>>> Terrain T/A KOs, but will definitely upgrade to a 33" tire of some
>>>>>> sort in the future when these wear out. I will never upgrade to
>>>>>> bigger than a 33" tire. As for off-roading, I do some light trail
>>>>>> riding and the occasional hop in the mud puddle when I find one that
>>>>>> looks fun. 80% of my driving is highway at approximately 70 miles
>>>>>> round trip at a speed of anywhere from 60-70 mph. The other 20% is
>>>>>> split between city driving (10%), and off-roading (10%). My main
>>>>>> goal
>>>>>> is to get my Jeep to drive as close as possible to the way it did
>>>>>> bone
>>>>>> stock (being able to use my 6th gear on the freeway) and to prevent
>>>>>> excessive wear and tear on my clutch and engine parts. Someone
>>>>>> please
>>>>>> help! : D
>>>>>>
>>>>>> '06 TJ (4.0L with I-6)
>>>>>> 6 speed manual
>>>>>> Dana 30 front/35 rear
>>>>>> current 3.07s
>>>>>>
>>>>>> P.S. Would I also need to upgrade my Dana 30/35 to a bigger one
>>>>>> (like
>>>>>> 44s)? I don't know if this makes any difference as far as which gear
>>>>>> ratio to go with, but where I live (upstate NY), there can be quite a
>>>>>> bit of snow from Dec. - Apr.
>>>>>>
>>>

c

OK, so her tires are 27.6" instead of 29". The same formula still applies.

27.6" tires with 3.07 gears will turn the same RPM as 33" tires with
3.67 gears. This is HARDLY the same as the 4.56 gears that Carl said
were, and I quote "4.56 is as close as it gets to how it was stock". I
was wrong because I had the wrong original tire size. But even at that
my calculations are much closer than saying that 4.56 gears would be as
close to stock as her original setup.


Mike Romain wrote:
> She had 215's....
>
> You are wrong.
>
> Mike
>
> c wrote:
>> I'm not disputing that those gear ratios would work the best, but you
>> stated that they would be closest to stock, and that is simply not
>> true. It is a simple mathematical equation to calculate the proper
>> gear ratio, and nothing more.
>>
>> Chris
>>
>> Carl S wrote:
>>> Sorry, but it's widely held that 4.10 is correct for 31/32, 4.56 is
>>> for 33's and 4.88 for 35's.
>>>
>>> Carl
>>>
>>>
>>> "c" <c@me.org> wrote in message
>>> news:46f41cce$0$11026$4c368faf@roadrunner.com...
>>>> Sorry, but that is incorrect. Her original gear ratio is 3.07 and
>>>> her tires were 29". It's s simple ratio between the tire diameter
>>>> and gear ratio to maintain the same RPM. 29/3.07=9.45. If she
>>>> maintains that same ratio between tire diameter and gear ratio, her
>>>> RPM will remain the same. To calculate the gear ratio, she just
>>>> needs to divide the tire diameter by 9.45 to get the proper gear
>>>> ratio if she wants to achieve the same RPM as original.
>>>>
>>>> for 31s it would be 3.26
>>>> for 33s it would be 3.49
>>>>
>>>> Chris
>>>>
>>>> Carl S wrote:
>>>>> 4.56 is as close as it gets to how it was stock.
>>>>>
>>>>> Carl
>>>>>
>>>>> "Tracie" <brainart@upstate.edu> wrote in message
>>>>> news:1190386700.755334.108510@19g2000hsx.googlegro ups.com...
>>>>>> I have posted this once today, but for some reason it did not post.
>>>>>> If anyone finds it, sorry for the duplicate post.
>>>>>>
>>>>>> Anyhoo, I definitely want to re-gear but I am not sure if the 3.73 or
>>>>>> the 4.11 ratio would be better for me. I currently have 31" BFG All
>>>>>> Terrain T/A KOs, but will definitely upgrade to a 33" tire of some
>>>>>> sort in the future when these wear out. I will never upgrade to
>>>>>> bigger than a 33" tire. As for off-roading, I do some light trail
>>>>>> riding and the occasional hop in the mud puddle when I find one that
>>>>>> looks fun. 80% of my driving is highway at approximately 70 miles
>>>>>> round trip at a speed of anywhere from 60-70 mph. The other 20% is
>>>>>> split between city driving (10%), and off-roading (10%). My main
>>>>>> goal
>>>>>> is to get my Jeep to drive as close as possible to the way it did
>>>>>> bone
>>>>>> stock (being able to use my 6th gear on the freeway) and to prevent
>>>>>> excessive wear and tear on my clutch and engine parts. Someone
>>>>>> please
>>>>>> help! : D
>>>>>>
>>>>>> '06 TJ (4.0L with I-6)
>>>>>> 6 speed manual
>>>>>> Dana 30 front/35 rear
>>>>>> current 3.07s
>>>>>>
>>>>>> P.S. Would I also need to upgrade my Dana 30/35 to a bigger one
>>>>>> (like
>>>>>> 44s)? I don't know if this makes any difference as far as which gear
>>>>>> ratio to go with, but where I live (upstate NY), there can be quite a
>>>>>> bit of snow from Dec. - Apr.
>>>>>>
>>>

c

OK, so her tires are 27.6" instead of 29". The same formula still applies.

27.6" tires with 3.07 gears will turn the same RPM as 33" tires with
3.67 gears. This is HARDLY the same as the 4.56 gears that Carl said
were, and I quote "4.56 is as close as it gets to how it was stock". I
was wrong because I had the wrong original tire size. But even at that
my calculations are much closer than saying that 4.56 gears would be as
close to stock as her original setup.


Mike Romain wrote:
> She had 215's....
>
> You are wrong.
>
> Mike
>
> c wrote:
>> I'm not disputing that those gear ratios would work the best, but you
>> stated that they would be closest to stock, and that is simply not
>> true. It is a simple mathematical equation to calculate the proper
>> gear ratio, and nothing more.
>>
>> Chris
>>
>> Carl S wrote:
>>> Sorry, but it's widely held that 4.10 is correct for 31/32, 4.56 is
>>> for 33's and 4.88 for 35's.
>>>
>>> Carl
>>>
>>>
>>> "c" <c@me.org> wrote in message
>>> news:46f41cce$0$11026$4c368faf@roadrunner.com...
>>>> Sorry, but that is incorrect. Her original gear ratio is 3.07 and
>>>> her tires were 29". It's s simple ratio between the tire diameter
>>>> and gear ratio to maintain the same RPM. 29/3.07=9.45. If she
>>>> maintains that same ratio between tire diameter and gear ratio, her
>>>> RPM will remain the same. To calculate the gear ratio, she just
>>>> needs to divide the tire diameter by 9.45 to get the proper gear
>>>> ratio if she wants to achieve the same RPM as original.
>>>>
>>>> for 31s it would be 3.26
>>>> for 33s it would be 3.49
>>>>
>>>> Chris
>>>>
>>>> Carl S wrote:
>>>>> 4.56 is as close as it gets to how it was stock.
>>>>>
>>>>> Carl
>>>>>
>>>>> "Tracie" <brainart@upstate.edu> wrote in message
>>>>> news:1190386700.755334.108510@19g2000hsx.googlegro ups.com...
>>>>>> I have posted this once today, but for some reason it did not post.
>>>>>> If anyone finds it, sorry for the duplicate post.
>>>>>>
>>>>>> Anyhoo, I definitely want to re-gear but I am not sure if the 3.73 or
>>>>>> the 4.11 ratio would be better for me. I currently have 31" BFG All
>>>>>> Terrain T/A KOs, but will definitely upgrade to a 33" tire of some
>>>>>> sort in the future when these wear out. I will never upgrade to
>>>>>> bigger than a 33" tire. As for off-roading, I do some light trail
>>>>>> riding and the occasional hop in the mud puddle when I find one that
>>>>>> looks fun. 80% of my driving is highway at approximately 70 miles
>>>>>> round trip at a speed of anywhere from 60-70 mph. The other 20% is
>>>>>> split between city driving (10%), and off-roading (10%). My main
>>>>>> goal
>>>>>> is to get my Jeep to drive as close as possible to the way it did
>>>>>> bone
>>>>>> stock (being able to use my 6th gear on the freeway) and to prevent
>>>>>> excessive wear and tear on my clutch and engine parts. Someone
>>>>>> please
>>>>>> help! : D
>>>>>>
>>>>>> '06 TJ (4.0L with I-6)
>>>>>> 6 speed manual
>>>>>> Dana 30 front/35 rear
>>>>>> current 3.07s
>>>>>>
>>>>>> P.S. Would I also need to upgrade my Dana 30/35 to a bigger one
>>>>>> (like
>>>>>> 44s)? I don't know if this makes any difference as far as which gear
>>>>>> ratio to go with, but where I live (upstate NY), there can be quite a
>>>>>> bit of snow from Dec. - Apr.
>>>>>>
>>>

Carl S

I should have been more specific. 4.56 gears turning 33" tires will restore
stock performance. The lil bit of extra gear makes up for extra wind
resistance, tire wieght, ect.

Carl

"c" <c@me.org> wrote in message
news:46f4725b$0$9561$4c368faf@roadrunner.com...
> OK, so her tires are 27.6" instead of 29". The same formula still applies.
>
> 27.6" tires with 3.07 gears will turn the same RPM as 33" tires with 3.67
> gears. This is HARDLY the same as the 4.56 gears that Carl said were, and
> I quote "4.56 is as close as it gets to how it was stock". I was wrong
> because I had the wrong original tire size. But even at that my
> calculations are much closer than saying that 4.56 gears would be as close
> to stock as her original setup.
>
>
> Mike Romain wrote:
>> She had 215's....
>>
>> You are wrong.
>>
>> Mike
>>
>> c wrote:
>>> I'm not disputing that those gear ratios would work the best, but you
>>> stated that they would be closest to stock, and that is simply not true.
>>> It is a simple mathematical equation to calculate the proper gear ratio,
>>> and nothing more.
>>>
>>> Chris
>>>
>>> Carl S wrote:
>>>> Sorry, but it's widely held that 4.10 is correct for 31/32, 4.56 is for
>>>> 33's and 4.88 for 35's.
>>>>
>>>> Carl
>>>>
>>>>
>>>> "c" <c@me.org> wrote in message
>>>> news:46f41cce$0$11026$4c368faf@roadrunner.com...
>>>>> Sorry, but that is incorrect. Her original gear ratio is 3.07 and her
>>>>> tires were 29". It's s simple ratio between the tire diameter and gear
>>>>> ratio to maintain the same RPM. 29/3.07=9.45. If she maintains that
>>>>> same ratio between tire diameter and gear ratio, her RPM will remain
>>>>> the same. To calculate the gear ratio, she just needs to divide the
>>>>> tire diameter by 9.45 to get the proper gear ratio if she wants to
>>>>> achieve the same RPM as original.
>>>>>
>>>>> for 31s it would be 3.26
>>>>> for 33s it would be 3.49
>>>>>
>>>>> Chris
>>>>>
>>>>> Carl S wrote:
>>>>>> 4.56 is as close as it gets to how it was stock.
>>>>>>
>>>>>> Carl
>>>>>>
>>>>>> "Tracie" <brainart@upstate.edu> wrote in message
>>>>>> news:1190386700.755334.108510@19g2000hsx.googlegro ups.com...
>>>>>>> I have posted this once today, but for some reason it did not post.
>>>>>>> If anyone finds it, sorry for the duplicate post.
>>>>>>>
>>>>>>> Anyhoo, I definitely want to re-gear but I am not sure if the 3.73
>>>>>>> or
>>>>>>> the 4.11 ratio would be better for me. I currently have 31" BFG All
>>>>>>> Terrain T/A KOs, but will definitely upgrade to a 33" tire of some
>>>>>>> sort in the future when these wear out. I will never upgrade to
>>>>>>> bigger than a 33" tire. As for off-roading, I do some light trail
>>>>>>> riding and the occasional hop in the mud puddle when I find one that
>>>>>>> looks fun. 80% of my driving is highway at approximately 70 miles
>>>>>>> round trip at a speed of anywhere from 60-70 mph. The other 20% is
>>>>>>> split between city driving (10%), and off-roading (10%). My main
>>>>>>> goal
>>>>>>> is to get my Jeep to drive as close as possible to the way it did
>>>>>>> bone
>>>>>>> stock (being able to use my 6th gear on the freeway) and to prevent
>>>>>>> excessive wear and tear on my clutch and engine parts. Someone
>>>>>>> please
>>>>>>> help! : D
>>>>>>>
>>>>>>> '06 TJ (4.0L with I-6)
>>>>>>> 6 speed manual
>>>>>>> Dana 30 front/35 rear
>>>>>>> current 3.07s
>>>>>>>
>>>>>>> P.S. Would I also need to upgrade my Dana 30/35 to a bigger one
>>>>>>> (like
>>>>>>> 44s)? I don't know if this makes any difference as far as which
>>>>>>> gear
>>>>>>> ratio to go with, but where I live (upstate NY), there can be quite
>>>>>>> a
>>>>>>> bit of snow from Dec. - Apr.
>>>>>>>
>>>>