I am running 31s on my TJ in the winter. I have it geared at 3.73 and
6 cylinder. I run 33s Muds in the summer. I would go with the 31s
since they look better with a TJ. Rubicons come with 31 inch tires so
clearance is not a problem.
The problem is that if you stick with 30s and you change your mind,
getting 5 new tires is $$$. And you will not be happy. Go big go
once!

 

I am running 31s on my TJ in the winter. I have it geared at 3.73 and
6 cylinder. I run 33s Muds in the summer. I would go with the 31s
since they look better with a TJ. Rubicons come with 31 inch tires so
clearance is not a problem.
The problem is that if you stick with 30s and you change your mind,
getting 5 new tires is $$$. And you will not be happy. Go big go
once!

 

I am running 31s on my TJ in the winter. I have it geared at 3.73 and
6 cylinder. I run 33s Muds in the summer. I would go with the 31s
since they look better with a TJ. Rubicons come with 31 inch tires so
clearance is not a problem.
The problem is that if you stick with 30s and you change your mind,
getting 5 new tires is $$$. And you will not be happy. Go big go
once!

 

I'm running the stock gearing that came with the '99 Sahara (D30 in front, D35
in back) which would make it 3.73, I think? The only modification I have on
it is the 31x10.5.15 tires - everything else is stock. I run about 2200 RPM
on the highway, at about 60-70MPH in fifth.

It's four and a half years old, and has 106K miles on it - I *LOVE* my Jeep!!!
It's also my daily driver, averages about 16-18 MPG (city/highway mix), which
was kinda pricey when gas was up around $2/gallon, but I wouldn't trade it for
anything.

Tirya
--
TDC Inca Jeeper
A dirty Jeep is a happy Jeep.

"stephjeff" <bag@centurytel.net> wrote in message
news:b15a3f2e.0312212051.4803845d@posting.google.c om...
> Tirya, very nice. Now I really want to get the 31's. What kind of
> gearing do you have and what kind of mpg are you getting? Is it
> decent in fifth gear on the highway? I still have to be somewhat
> pratical. It's my only ride.

 

I'm running the stock gearing that came with the '99 Sahara (D30 in front, D35
in back) which would make it 3.73, I think? The only modification I have on
it is the 31x10.5.15 tires - everything else is stock. I run about 2200 RPM
on the highway, at about 60-70MPH in fifth.

It's four and a half years old, and has 106K miles on it - I *LOVE* my Jeep!!!
It's also my daily driver, averages about 16-18 MPG (city/highway mix), which
was kinda pricey when gas was up around $2/gallon, but I wouldn't trade it for
anything.

Tirya
--
TDC Inca Jeeper
A dirty Jeep is a happy Jeep.

"stephjeff" <bag@centurytel.net> wrote in message
news:b15a3f2e.0312212051.4803845d@posting.google.c om...
> Tirya, very nice. Now I really want to get the 31's. What kind of
> gearing do you have and what kind of mpg are you getting? Is it
> decent in fifth gear on the highway? I still have to be somewhat
> pratical. It's my only ride.

 

I'm running the stock gearing that came with the '99 Sahara (D30 in front, D35
in back) which would make it 3.73, I think? The only modification I have on
it is the 31x10.5.15 tires - everything else is stock. I run about 2200 RPM
on the highway, at about 60-70MPH in fifth.

It's four and a half years old, and has 106K miles on it - I *LOVE* my Jeep!!!
It's also my daily driver, averages about 16-18 MPG (city/highway mix), which
was kinda pricey when gas was up around $2/gallon, but I wouldn't trade it for
anything.

Tirya
--
TDC Inca Jeeper
A dirty Jeep is a happy Jeep.

"stephjeff" <bag@centurytel.net> wrote in message
news:b15a3f2e.0312212051.4803845d@posting.google.c om...
> Tirya, very nice. Now I really want to get the 31's. What kind of
> gearing do you have and what kind of mpg are you getting? Is it
> decent in fifth gear on the highway? I still have to be somewhat
> pratical. It's my only ride.

 

3.73 was an option.

Tirya wrote:

> I'm running the stock gearing that came with the '99 Sahara (D30 in front, D35
> in back) which would make it 3.73, I think? The only modification I have on
> it is the 31x10.5.15 tires - everything else is stock. I run about 2200 RPM
> on the highway, at about 60-70MPH in fifth.
>
> It's four and a half years old, and has 106K miles on it - I *LOVE* my Jeep!!!
> It's also my daily driver, averages about 16-18 MPG (city/highway mix), which
> was kinda pricey when gas was up around $2/gallon, but I wouldn't trade it for
> anything.
>
> Tirya
> --
> TDC Inca Jeeper
> A dirty Jeep is a happy Jeep.
>
> "stephjeff" <bag@centurytel.net> wrote in message
> news:b15a3f2e.0312212051.4803845d@posting.google.c om...
>
>>Tirya, very nice. Now I really want to get the 31's. What kind of
>>gearing do you have and what kind of mpg are you getting? Is it
>>decent in fifth gear on the highway? I still have to be somewhat
>>pratical. It's my only ride.
>
>
>

--
__________________________________________________ _________
tw
03 TJ Rubicon
01 XJ Sport

"Reports that say that something hasn't happened are always interesting
to me, because as we know, there are known knowns, there are things
we know we know. We also know there are known unknowns; that is to
say we know there are some things we do not know. But there are also
unknown unknowns — the ones we don't know we don't know."
-- Donald Rumsfeld (2003)

"I think that gay marriage is something that should be between a man and
a woman."
-- Arnold Schwarzenegger (2003)

__________________________________________________ _________

 

3.73 was an option.

Tirya wrote:

> I'm running the stock gearing that came with the '99 Sahara (D30 in front, D35
> in back) which would make it 3.73, I think? The only modification I have on
> it is the 31x10.5.15 tires - everything else is stock. I run about 2200 RPM
> on the highway, at about 60-70MPH in fifth.
>
> It's four and a half years old, and has 106K miles on it - I *LOVE* my Jeep!!!
> It's also my daily driver, averages about 16-18 MPG (city/highway mix), which
> was kinda pricey when gas was up around $2/gallon, but I wouldn't trade it for
> anything.
>
> Tirya
> --
> TDC Inca Jeeper
> A dirty Jeep is a happy Jeep.
>
> "stephjeff" <bag@centurytel.net> wrote in message
> news:b15a3f2e.0312212051.4803845d@posting.google.c om...
>
>>Tirya, very nice. Now I really want to get the 31's. What kind of
>>gearing do you have and what kind of mpg are you getting? Is it
>>decent in fifth gear on the highway? I still have to be somewhat
>>pratical. It's my only ride.
>
>
>

--
__________________________________________________ _________
tw
03 TJ Rubicon
01 XJ Sport

"Reports that say that something hasn't happened are always interesting
to me, because as we know, there are known knowns, there are things
we know we know. We also know there are known unknowns; that is to
say we know there are some things we do not know. But there are also
unknown unknowns — the ones we don't know we don't know."
-- Donald Rumsfeld (2003)

"I think that gay marriage is something that should be between a man and
a woman."
-- Arnold Schwarzenegger (2003)

__________________________________________________ _________

 

3.73 was an option.

Tirya wrote:

> I'm running the stock gearing that came with the '99 Sahara (D30 in front, D35
> in back) which would make it 3.73, I think? The only modification I have on
> it is the 31x10.5.15 tires - everything else is stock. I run about 2200 RPM
> on the highway, at about 60-70MPH in fifth.
>
> It's four and a half years old, and has 106K miles on it - I *LOVE* my Jeep!!!
> It's also my daily driver, averages about 16-18 MPG (city/highway mix), which
> was kinda pricey when gas was up around $2/gallon, but I wouldn't trade it for
> anything.
>
> Tirya
> --
> TDC Inca Jeeper
> A dirty Jeep is a happy Jeep.
>
> "stephjeff" <bag@centurytel.net> wrote in message
> news:b15a3f2e.0312212051.4803845d@posting.google.c om...
>
>>Tirya, very nice. Now I really want to get the 31's. What kind of
>>gearing do you have and what kind of mpg are you getting? Is it
>>decent in fifth gear on the highway? I still have to be somewhat
>>pratical. It's my only ride.
>
>
>

--
__________________________________________________ _________
tw
03 TJ Rubicon
01 XJ Sport

"Reports that say that something hasn't happened are always interesting
to me, because as we know, there are known knowns, there are things
we know we know. We also know there are known unknowns; that is to
say we know there are some things we do not know. But there are also
unknown unknowns — the ones we don't know we don't know."
-- Donald Rumsfeld (2003)

"I think that gay marriage is something that should be between a man and
a woman."
-- Arnold Schwarzenegger (2003)

__________________________________________________ _________

 

<< I originally went with the 30's over 31's so I didn't lose an extra 1
or 2 mpg's, and lose more power. The stock 30's even felt kinda
sluggish to me, with the six cyl >>

What is your jeep geared? 30's are about as big as is practical with 3.07's
and a 5-speed tranny.

-jeff