Hi All,

I had bought my '01 TJ 4.0L Auto a few months back and as part of figuring
out what it has and what I need to add to my wish list, I am confused about
the axle ratios on my TJ. All the material I have read on the internet and
even Jeep website (www.jeep.co.nz) says that Dana 44 on a 4.0L Auto comes
with 3.73 axle gearing, but my build order printed by the dealer said mine
came with Dana 44 4.0L Auto and 3.07 axle gearing. I didn't believe it, so
I raised one front tyre and rotated it four times and counted 6.25
rotations on the front propeller shaft, which basically confirms that I do
have 3.07. I also finally found the manufacturers tag on the pumpkin
saying something something Spicer and then a bunch of number that had 3.07
stamped in the beginning. So my questions are:

1) How difficult and expensive would it be to go to a higher ratio?
(addition to my wish list)

2) Whats the biggest tyre size I can go with 3.07 (assuming re-gearing is
expensive). Currently I have 225/70 R16 BFG AT KO on 16 inch five spoke
Jeep Icon Alloy wheels. I do want to get bigger tyres once the current one
are all worn out because currently the Jeep is sitting too low (I have been
scrapping my fuel tank skid plate on some trails).

3) I also wanted to take the diff / tranny / ac wents a little higher than
where they are. It rains often and heavily in Auckland and getting water
in weird places is not uncommon. I have found the ac went, which just
unceremoniously ends in the firewall. I have also found the went on the
front axle, which actually has a rubber hose that ends at the top at the
same level at the upper most point on the radiator (great). But I could
not find any wents on the rear axle or the transmission. Any guidance
would be appreciated as to the locations and sizes so that I could buy
rubber hoses to extend them to reasonable height.

Thanks you all for taking the time to read and answer my queries. This has
been a great group and I have learnt a lot about Jeeps just by reading
posts for the past few months.

Kind regards
TW

 

"TW" <a t t w @ w a v e . c o . n z> wrote in message
news:btbfe2$9f5$2@news.wave.co.nz...
> Hi All,
>
> I had bought my '01 TJ 4.0L Auto a few months back and as part of figuring
> out what it has and what I need to add to my wish list, I am confused
about
> the axle ratios on my TJ. All the material I have read on the internet
and
> even Jeep website (www.jeep.co.nz) says that Dana 44 on a 4.0L Auto comes
> with 3.73 axle gearing, but my build order printed by the dealer said mine
> came with Dana 44 4.0L Auto and 3.07 axle gearing. I didn't believe it,
so
> I raised one front tyre and rotated it four times and counted 6.25
> rotations on the front propeller shaft, which basically confirms that I do
> have 3.07. I also finally found the manufacturers tag on the pumpkin
> saying something something Spicer and then a bunch of number that had 3.07
> stamped in the beginning. So my questions are:

Are you sure it's a D44, I also thought they only came with 3.73's.

> 1) How difficult and expensive would it be to go to a higher ratio?
> (addition to my wish list)

About $1,000US for parts and should be done by an experienced mechanic with
the proper tools. Labor (and any parts markup) would be extra.

> 2) Whats the biggest tyre size I can go with 3.07 (assuming re-gearing is
> expensive). Currently I have 225/70 R16 BFG AT KO on 16 inch five spoke
> Jeep Icon Alloy wheels. I do want to get bigger tyres once the current
one
> are all worn out because currently the Jeep is sitting too low (I have
been
> scrapping my fuel tank skid plate on some trails).

You could probably go as far as 31's but you will loose power. Much more
and you will need re-geared and some kind of lift. Those BFG's won't ware
out till about 40K miles.

> 3) I also wanted to take the diff / tranny / ac wents a little higher than
> where they are. It rains often and heavily in Auckland and getting water
> in weird places is not uncommon. I have found the ac went, which just
> unceremoniously ends in the firewall. I have also found the went on the
> front axle, which actually has a rubber hose that ends at the top at the
> same level at the upper most point on the radiator (great). But I could
> not find any wents on the rear axle or the transmission. Any guidance
> would be appreciated as to the locations and sizes so that I could buy
> rubber hoses to extend them to reasonable height.

Both my axles have vent tubes (D30 & D44) but none on the tranny.

> Thanks you all for taking the time to read and answer my queries. This
has
> been a great group and I have learnt a lot about Jeeps just by reading
> posts for the past few months.
>
> Kind regards
> TW
>

No worries, mate!

--
JimG
80' CJ-7, 258 CID
35" BFG MT's on 15x10 Centerlines
4.56 D30-D44 SOA
D300 w/4:1 & Currie twin sticks
Warn 8000i w/dual batteries
LockRight F&R

 

"TW" <a t t w @ w a v e . c o . n z> wrote in message
news:btbfe2$9f5$2@news.wave.co.nz...
> Hi All,
>
> I had bought my '01 TJ 4.0L Auto a few months back and as part of figuring
> out what it has and what I need to add to my wish list, I am confused
about
> the axle ratios on my TJ. All the material I have read on the internet
and
> even Jeep website (www.jeep.co.nz) says that Dana 44 on a 4.0L Auto comes
> with 3.73 axle gearing, but my build order printed by the dealer said mine
> came with Dana 44 4.0L Auto and 3.07 axle gearing. I didn't believe it,
so
> I raised one front tyre and rotated it four times and counted 6.25
> rotations on the front propeller shaft, which basically confirms that I do
> have 3.07. I also finally found the manufacturers tag on the pumpkin
> saying something something Spicer and then a bunch of number that had 3.07
> stamped in the beginning. So my questions are:

Are you sure it's a D44, I also thought they only came with 3.73's.

> 1) How difficult and expensive would it be to go to a higher ratio?
> (addition to my wish list)

About $1,000US for parts and should be done by an experienced mechanic with
the proper tools. Labor (and any parts markup) would be extra.

> 2) Whats the biggest tyre size I can go with 3.07 (assuming re-gearing is
> expensive). Currently I have 225/70 R16 BFG AT KO on 16 inch five spoke
> Jeep Icon Alloy wheels. I do want to get bigger tyres once the current
one
> are all worn out because currently the Jeep is sitting too low (I have
been
> scrapping my fuel tank skid plate on some trails).

You could probably go as far as 31's but you will loose power. Much more
and you will need re-geared and some kind of lift. Those BFG's won't ware
out till about 40K miles.

> 3) I also wanted to take the diff / tranny / ac wents a little higher than
> where they are. It rains often and heavily in Auckland and getting water
> in weird places is not uncommon. I have found the ac went, which just
> unceremoniously ends in the firewall. I have also found the went on the
> front axle, which actually has a rubber hose that ends at the top at the
> same level at the upper most point on the radiator (great). But I could
> not find any wents on the rear axle or the transmission. Any guidance
> would be appreciated as to the locations and sizes so that I could buy
> rubber hoses to extend them to reasonable height.

Both my axles have vent tubes (D30 & D44) but none on the tranny.

> Thanks you all for taking the time to read and answer my queries. This
has
> been a great group and I have learnt a lot about Jeeps just by reading
> posts for the past few months.
>
> Kind regards
> TW
>

No worries, mate!

--
JimG
80' CJ-7, 258 CID
35" BFG MT's on 15x10 Centerlines
4.56 D30-D44 SOA
D300 w/4:1 & Currie twin sticks
Warn 8000i w/dual batteries
LockRight F&R

 

"TW" <a t t w @ w a v e . c o . n z> wrote in message
news:btbfe2$9f5$2@news.wave.co.nz...
> Hi All,
>
> I had bought my '01 TJ 4.0L Auto a few months back and as part of figuring
> out what it has and what I need to add to my wish list, I am confused
about
> the axle ratios on my TJ. All the material I have read on the internet
and
> even Jeep website (www.jeep.co.nz) says that Dana 44 on a 4.0L Auto comes
> with 3.73 axle gearing, but my build order printed by the dealer said mine
> came with Dana 44 4.0L Auto and 3.07 axle gearing. I didn't believe it,
so
> I raised one front tyre and rotated it four times and counted 6.25
> rotations on the front propeller shaft, which basically confirms that I do
> have 3.07. I also finally found the manufacturers tag on the pumpkin
> saying something something Spicer and then a bunch of number that had 3.07
> stamped in the beginning. So my questions are:

Are you sure it's a D44, I also thought they only came with 3.73's.

> 1) How difficult and expensive would it be to go to a higher ratio?
> (addition to my wish list)

About $1,000US for parts and should be done by an experienced mechanic with
the proper tools. Labor (and any parts markup) would be extra.

> 2) Whats the biggest tyre size I can go with 3.07 (assuming re-gearing is
> expensive). Currently I have 225/70 R16 BFG AT KO on 16 inch five spoke
> Jeep Icon Alloy wheels. I do want to get bigger tyres once the current
one
> are all worn out because currently the Jeep is sitting too low (I have
been
> scrapping my fuel tank skid plate on some trails).

You could probably go as far as 31's but you will loose power. Much more
and you will need re-geared and some kind of lift. Those BFG's won't ware
out till about 40K miles.

> 3) I also wanted to take the diff / tranny / ac wents a little higher than
> where they are. It rains often and heavily in Auckland and getting water
> in weird places is not uncommon. I have found the ac went, which just
> unceremoniously ends in the firewall. I have also found the went on the
> front axle, which actually has a rubber hose that ends at the top at the
> same level at the upper most point on the radiator (great). But I could
> not find any wents on the rear axle or the transmission. Any guidance
> would be appreciated as to the locations and sizes so that I could buy
> rubber hoses to extend them to reasonable height.

Both my axles have vent tubes (D30 & D44) but none on the tranny.

> Thanks you all for taking the time to read and answer my queries. This
has
> been a great group and I have learnt a lot about Jeeps just by reading
> posts for the past few months.
>
> Kind regards
> TW
>

No worries, mate!

--
JimG
80' CJ-7, 258 CID
35" BFG MT's on 15x10 Centerlines
4.56 D30-D44 SOA
D300 w/4:1 & Currie twin sticks
Warn 8000i w/dual batteries
LockRight F&R

 

"TW" <a t t w @ w a v e . c o . n z> wrote in message
news:btbfe2$9f5$2@news.wave.co.nz...
> Hi All,
>
> I had bought my '01 TJ 4.0L Auto a few months back and as part of figuring
> out what it has and what I need to add to my wish list, I am confused
about
> the axle ratios on my TJ. All the material I have read on the internet
and
> even Jeep website (www.jeep.co.nz) says that Dana 44 on a 4.0L Auto comes
> with 3.73 axle gearing, but my build order printed by the dealer said mine
> came with Dana 44 4.0L Auto and 3.07 axle gearing. I didn't believe it,
so
> I raised one front tyre and rotated it four times and counted 6.25
> rotations on the front propeller shaft, which basically confirms that I do
> have 3.07. I also finally found the manufacturers tag on the pumpkin
> saying something something Spicer and then a bunch of number that had 3.07
> stamped in the beginning. So my questions are:
>
> 1) How difficult and expensive would it be to go to a higher ratio?
> (addition to my wish list)
>
First, you want a lower ratio, which is a higher numeric value.



> 2) Whats the biggest tyre size I can go with 3.07 (assuming re-gearing is
> expensive). Currently I have 225/70 R16 BFG AT KO on 16 inch five spoke
> Jeep Icon Alloy wheels. I do want to get bigger tyres once the current
one
> are all worn out because currently the Jeep is sitting too low (I have
been
> scrapping my fuel tank skid plate on some trails).
>

You will be stuck at 30" tires for the most part. You need to change some
suspensiion stuff to get bigger than 30s under there anyway. Actually, you
can fit 31s but the gears will not work out very well.



> 3) I also wanted to take the diff / tranny / ac wents a little higher than
> where they are. It rains often and heavily in Auckland and getting water
> in weird places is not uncommon. I have found the ac went, which just
> unceremoniously ends in the firewall. I have also found the went on the
> front axle, which actually has a rubber hose that ends at the top at the
> same level at the upper most point on the radiator (great). But I could
> not find any wents on the rear axle or the transmission. Any guidance
> would be appreciated as to the locations and sizes so that I could buy
> rubber hoses to extend them to reasonable height.
>
The diff vents should be pretty close to the level of the intake system. If
the intake sucks up some water, the diffs getting wet will be the least of
your problems.

The trans has a vent that closes if it goes under water, the tcase has a
vent hose that is attached to the firewall, and the rear diff has a vent
hose that goes up inside the fender.




> Thanks you all for taking the time to read and answer my queries. This
has
> been a great group and I have learnt a lot about Jeeps just by reading
> posts for the past few months.
>
> Kind regards
> TW
>

 

"TW" <a t t w @ w a v e . c o . n z> wrote in message
news:btbfe2$9f5$2@news.wave.co.nz...
> Hi All,
>
> I had bought my '01 TJ 4.0L Auto a few months back and as part of figuring
> out what it has and what I need to add to my wish list, I am confused
about
> the axle ratios on my TJ. All the material I have read on the internet
and
> even Jeep website (www.jeep.co.nz) says that Dana 44 on a 4.0L Auto comes
> with 3.73 axle gearing, but my build order printed by the dealer said mine
> came with Dana 44 4.0L Auto and 3.07 axle gearing. I didn't believe it,
so
> I raised one front tyre and rotated it four times and counted 6.25
> rotations on the front propeller shaft, which basically confirms that I do
> have 3.07. I also finally found the manufacturers tag on the pumpkin
> saying something something Spicer and then a bunch of number that had 3.07
> stamped in the beginning. So my questions are:
>
> 1) How difficult and expensive would it be to go to a higher ratio?
> (addition to my wish list)
>
First, you want a lower ratio, which is a higher numeric value.



> 2) Whats the biggest tyre size I can go with 3.07 (assuming re-gearing is
> expensive). Currently I have 225/70 R16 BFG AT KO on 16 inch five spoke
> Jeep Icon Alloy wheels. I do want to get bigger tyres once the current
one
> are all worn out because currently the Jeep is sitting too low (I have
been
> scrapping my fuel tank skid plate on some trails).
>

You will be stuck at 30" tires for the most part. You need to change some
suspensiion stuff to get bigger than 30s under there anyway. Actually, you
can fit 31s but the gears will not work out very well.



> 3) I also wanted to take the diff / tranny / ac wents a little higher than
> where they are. It rains often and heavily in Auckland and getting water
> in weird places is not uncommon. I have found the ac went, which just
> unceremoniously ends in the firewall. I have also found the went on the
> front axle, which actually has a rubber hose that ends at the top at the
> same level at the upper most point on the radiator (great). But I could
> not find any wents on the rear axle or the transmission. Any guidance
> would be appreciated as to the locations and sizes so that I could buy
> rubber hoses to extend them to reasonable height.
>
The diff vents should be pretty close to the level of the intake system. If
the intake sucks up some water, the diffs getting wet will be the least of
your problems.

The trans has a vent that closes if it goes under water, the tcase has a
vent hose that is attached to the firewall, and the rear diff has a vent
hose that goes up inside the fender.




> Thanks you all for taking the time to read and answer my queries. This
has
> been a great group and I have learnt a lot about Jeeps just by reading
> posts for the past few months.
>
> Kind regards
> TW
>

 

"TW" <a t t w @ w a v e . c o . n z> wrote in message
news:btbfe2$9f5$2@news.wave.co.nz...
> Hi All,
>
> I had bought my '01 TJ 4.0L Auto a few months back and as part of figuring
> out what it has and what I need to add to my wish list, I am confused
about
> the axle ratios on my TJ. All the material I have read on the internet
and
> even Jeep website (www.jeep.co.nz) says that Dana 44 on a 4.0L Auto comes
> with 3.73 axle gearing, but my build order printed by the dealer said mine
> came with Dana 44 4.0L Auto and 3.07 axle gearing. I didn't believe it,
so
> I raised one front tyre and rotated it four times and counted 6.25
> rotations on the front propeller shaft, which basically confirms that I do
> have 3.07. I also finally found the manufacturers tag on the pumpkin
> saying something something Spicer and then a bunch of number that had 3.07
> stamped in the beginning. So my questions are:
>
> 1) How difficult and expensive would it be to go to a higher ratio?
> (addition to my wish list)
>
First, you want a lower ratio, which is a higher numeric value.



> 2) Whats the biggest tyre size I can go with 3.07 (assuming re-gearing is
> expensive). Currently I have 225/70 R16 BFG AT KO on 16 inch five spoke
> Jeep Icon Alloy wheels. I do want to get bigger tyres once the current
one
> are all worn out because currently the Jeep is sitting too low (I have
been
> scrapping my fuel tank skid plate on some trails).
>

You will be stuck at 30" tires for the most part. You need to change some
suspensiion stuff to get bigger than 30s under there anyway. Actually, you
can fit 31s but the gears will not work out very well.



> 3) I also wanted to take the diff / tranny / ac wents a little higher than
> where they are. It rains often and heavily in Auckland and getting water
> in weird places is not uncommon. I have found the ac went, which just
> unceremoniously ends in the firewall. I have also found the went on the
> front axle, which actually has a rubber hose that ends at the top at the
> same level at the upper most point on the radiator (great). But I could
> not find any wents on the rear axle or the transmission. Any guidance
> would be appreciated as to the locations and sizes so that I could buy
> rubber hoses to extend them to reasonable height.
>
The diff vents should be pretty close to the level of the intake system. If
the intake sucks up some water, the diffs getting wet will be the least of
your problems.

The trans has a vent that closes if it goes under water, the tcase has a
vent hose that is attached to the firewall, and the rear diff has a vent
hose that goes up inside the fender.




> Thanks you all for taking the time to read and answer my queries. This
has
> been a great group and I have learnt a lot about Jeeps just by reading
> posts for the past few months.
>
> Kind regards
> TW
>

 

"JimG" <jimg@cj7_2muchspam.com> wrote in message
news:vvir9dc681qn2f@corp.supernews.com...
>
> "TW" <a t t w @ w a v e . c o . n z> wrote in message
> news:btbfe2$9f5$2@news.wave.co.nz...
> > Hi All,
> >
> > I had bought my '01 TJ 4.0L Auto a few months back and as part of
figuring
> > out what it has and what I need to add to my wish list, I am confused
> about
> > the axle ratios on my TJ. All the material I have read on the internet
> and
> > even Jeep website (www.jeep.co.nz) says that Dana 44 on a 4.0L Auto
comes
> > with 3.73 axle gearing, but my build order printed by the dealer said
mine
> > came with Dana 44 4.0L Auto and 3.07 axle gearing. I didn't believe it,
> so
> > I raised one front tyre and rotated it four times and counted 6.25
> > rotations on the front propeller shaft, which basically confirms that I
do
> > have 3.07. I also finally found the manufacturers tag on the pumpkin
> > saying something something Spicer and then a bunch of number that had
3.07
> > stamped in the beginning. So my questions are:
>
> Are you sure it's a D44, I also thought they only came with 3.73's.
>
> > 1) How difficult and expensive would it be to go to a higher ratio?
> > (addition to my wish list)
>
> About $1,000US for parts and should be done by an experienced mechanic
with
> the proper tools. Labor (and any parts markup) would be extra.
>
> > 2) Whats the biggest tyre size I can go with 3.07 (assuming re-gearing
is
> > expensive). Currently I have 225/70 R16 BFG AT KO on 16 inch five spoke
> > Jeep Icon Alloy wheels. I do want to get bigger tyres once the current
> one
> > are all worn out because currently the Jeep is sitting too low (I have
> been
> > scrapping my fuel tank skid plate on some trails).
>
> You could probably go as far as 31's but you will loose power. Much more
> and you will need re-geared and some kind of lift. Those BFG's won't ware
> out till about 40K miles.
>
> > 3) I also wanted to take the diff / tranny / ac wents a little higher
than
> > where they are. It rains often and heavily in Auckland and getting
water
> > in weird places is not uncommon. I have found the ac went, which just
> > unceremoniously ends in the firewall. I have also found the went on the
> > front axle, which actually has a rubber hose that ends at the top at the
> > same level at the upper most point on the radiator (great). But I could
> > not find any wents on the rear axle or the transmission. Any guidance
> > would be appreciated as to the locations and sizes so that I could buy
> > rubber hoses to extend them to reasonable height.
>
> Both my axles have vent tubes (D30 & D44) but none on the tranny.
>

Your tcase has a vent tube too.




> > Thanks you all for taking the time to read and answer my queries. This
> has
> > been a great group and I have learnt a lot about Jeeps just by reading
> > posts for the past few months.
> >
> > Kind regards
> > TW
> >
>
> No worries, mate!
>
> --
> JimG
> 80' CJ-7, 258 CID
> 35" BFG MT's on 15x10 Centerlines
> 4.56 D30-D44 SOA
> D300 w/4:1 & Currie twin sticks
> Warn 8000i w/dual batteries
> LockRight F&R
>
>
>

 

"JimG" <jimg@cj7_2muchspam.com> wrote in message
news:vvir9dc681qn2f@corp.supernews.com...
>
> "TW" <a t t w @ w a v e . c o . n z> wrote in message
> news:btbfe2$9f5$2@news.wave.co.nz...
> > Hi All,
> >
> > I had bought my '01 TJ 4.0L Auto a few months back and as part of
figuring
> > out what it has and what I need to add to my wish list, I am confused
> about
> > the axle ratios on my TJ. All the material I have read on the internet
> and
> > even Jeep website (www.jeep.co.nz) says that Dana 44 on a 4.0L Auto
comes
> > with 3.73 axle gearing, but my build order printed by the dealer said
mine
> > came with Dana 44 4.0L Auto and 3.07 axle gearing. I didn't believe it,
> so
> > I raised one front tyre and rotated it four times and counted 6.25
> > rotations on the front propeller shaft, which basically confirms that I
do
> > have 3.07. I also finally found the manufacturers tag on the pumpkin
> > saying something something Spicer and then a bunch of number that had
3.07
> > stamped in the beginning. So my questions are:
>
> Are you sure it's a D44, I also thought they only came with 3.73's.
>
> > 1) How difficult and expensive would it be to go to a higher ratio?
> > (addition to my wish list)
>
> About $1,000US for parts and should be done by an experienced mechanic
with
> the proper tools. Labor (and any parts markup) would be extra.
>
> > 2) Whats the biggest tyre size I can go with 3.07 (assuming re-gearing
is
> > expensive). Currently I have 225/70 R16 BFG AT KO on 16 inch five spoke
> > Jeep Icon Alloy wheels. I do want to get bigger tyres once the current
> one
> > are all worn out because currently the Jeep is sitting too low (I have
> been
> > scrapping my fuel tank skid plate on some trails).
>
> You could probably go as far as 31's but you will loose power. Much more
> and you will need re-geared and some kind of lift. Those BFG's won't ware
> out till about 40K miles.
>
> > 3) I also wanted to take the diff / tranny / ac wents a little higher
than
> > where they are. It rains often and heavily in Auckland and getting
water
> > in weird places is not uncommon. I have found the ac went, which just
> > unceremoniously ends in the firewall. I have also found the went on the
> > front axle, which actually has a rubber hose that ends at the top at the
> > same level at the upper most point on the radiator (great). But I could
> > not find any wents on the rear axle or the transmission. Any guidance
> > would be appreciated as to the locations and sizes so that I could buy
> > rubber hoses to extend them to reasonable height.
>
> Both my axles have vent tubes (D30 & D44) but none on the tranny.
>

Your tcase has a vent tube too.




> > Thanks you all for taking the time to read and answer my queries. This
> has
> > been a great group and I have learnt a lot about Jeeps just by reading
> > posts for the past few months.
> >
> > Kind regards
> > TW
> >
>
> No worries, mate!
>
> --
> JimG
> 80' CJ-7, 258 CID
> 35" BFG MT's on 15x10 Centerlines
> 4.56 D30-D44 SOA
> D300 w/4:1 & Currie twin sticks
> Warn 8000i w/dual batteries
> LockRight F&R
>
>
>

 

"JimG" <jimg@cj7_2muchspam.com> wrote in message
news:vvir9dc681qn2f@corp.supernews.com...
>
> "TW" <a t t w @ w a v e . c o . n z> wrote in message
> news:btbfe2$9f5$2@news.wave.co.nz...
> > Hi All,
> >
> > I had bought my '01 TJ 4.0L Auto a few months back and as part of
figuring
> > out what it has and what I need to add to my wish list, I am confused
> about
> > the axle ratios on my TJ. All the material I have read on the internet
> and
> > even Jeep website (www.jeep.co.nz) says that Dana 44 on a 4.0L Auto
comes
> > with 3.73 axle gearing, but my build order printed by the dealer said
mine
> > came with Dana 44 4.0L Auto and 3.07 axle gearing. I didn't believe it,
> so
> > I raised one front tyre and rotated it four times and counted 6.25
> > rotations on the front propeller shaft, which basically confirms that I
do
> > have 3.07. I also finally found the manufacturers tag on the pumpkin
> > saying something something Spicer and then a bunch of number that had
3.07
> > stamped in the beginning. So my questions are:
>
> Are you sure it's a D44, I also thought they only came with 3.73's.
>
> > 1) How difficult and expensive would it be to go to a higher ratio?
> > (addition to my wish list)
>
> About $1,000US for parts and should be done by an experienced mechanic
with
> the proper tools. Labor (and any parts markup) would be extra.
>
> > 2) Whats the biggest tyre size I can go with 3.07 (assuming re-gearing
is
> > expensive). Currently I have 225/70 R16 BFG AT KO on 16 inch five spoke
> > Jeep Icon Alloy wheels. I do want to get bigger tyres once the current
> one
> > are all worn out because currently the Jeep is sitting too low (I have
> been
> > scrapping my fuel tank skid plate on some trails).
>
> You could probably go as far as 31's but you will loose power. Much more
> and you will need re-geared and some kind of lift. Those BFG's won't ware
> out till about 40K miles.
>
> > 3) I also wanted to take the diff / tranny / ac wents a little higher
than
> > where they are. It rains often and heavily in Auckland and getting
water
> > in weird places is not uncommon. I have found the ac went, which just
> > unceremoniously ends in the firewall. I have also found the went on the
> > front axle, which actually has a rubber hose that ends at the top at the
> > same level at the upper most point on the radiator (great). But I could
> > not find any wents on the rear axle or the transmission. Any guidance
> > would be appreciated as to the locations and sizes so that I could buy
> > rubber hoses to extend them to reasonable height.
>
> Both my axles have vent tubes (D30 & D44) but none on the tranny.
>

Your tcase has a vent tube too.




> > Thanks you all for taking the time to read and answer my queries. This
> has
> > been a great group and I have learnt a lot about Jeeps just by reading
> > posts for the past few months.
> >
> > Kind regards
> > TW
> >
>
> No worries, mate!
>
> --
> JimG
> 80' CJ-7, 258 CID
> 35" BFG MT's on 15x10 Centerlines
> 4.56 D30-D44 SOA
> D300 w/4:1 & Currie twin sticks
> Warn 8000i w/dual batteries
> LockRight F&R
>
>
>