Re: Advice please: '90 YJ Conversion
 

Agreed, not only will it take major suspension work, you will have to pretty
much completely replace your driveline with (at minimum) 1-ton axles,
heavy-duty transfer case/transmission, driveshafts, etc. I think you may
have the Pugeot trans, it's not even adequate for a stock application, never
mind 42's. You're talking about serious coin and serious work.

"c" <c@me.org> wrote in message
news:46d15ceb$0$16520$4c368faf@roadrunner.com...
> Tires that big on a Wrangler will require MAJOR suspension work and a lot
> of fender cutting. Even 35-37" tires take quite a bit of work. If you are
> a total newbie to lifts in general, this might not be a good undertaking
> as your first lift project.
>
> That said, a spring over axle (SOA) conversion is the easiest way to get
> the lift you need, but there are drawbacks. You would probably need some
> lift built in to the springs in addition to the SOA conversion. SOA
> conversions also have the drawback of axle twist. My suggestion is that if
> you want to have this much lift is to Goggle SOA conversions and read up
> on them. There is quite a bit of info on the net.
>
> Chris
>
>
> Garrett wrote:
>> Hello,
>> Can anyone point me in the direction of a complete conversion guide
>> for a '90 YJ?
>> I'm kind of new to it all, but I'm hoping to upgrade the following,
>> along with anything else required to do so:
>>
>> -locking differentials (do I need these for both front and rear?),
>> also probably axle upgrades.
>>
>> -40-42'' tires (Was looking at super swampers, but I might be on
>> pavement too much to make them worthwhile), along with enough of a
>> suspension lift. I get lost here, because the guides I usually see
>> are for a maximum of 35" tires (are there laws against larger tires on
>> the road?).
>>
>> -I have a freshly rebuilt stock engine (4.2L straight 6) right now,
>> and I think I want to keep it. (I saw somewhere online that someone
>> got away with 42"s and the stock 4.2).
>>
>> -I'm pretty sure my transmission is stock, would it need to be
>> upgraded to handle the torque requirements of larger tires?
>>
>> I plan on using my rig mostly on desert/rocky trails and pavement, not
>> so much for snow, and rain isn't much of an issue.
>>
>> I realize I'm a total newbie, but you've gotta start somewhere. All
>> help is VERY greatly appreciated!
>>
>> Thanks!
>> -Garrett
>>

Re: Advice please: '90 YJ Conversion
 

Agreed, not only will it take major suspension work, you will have to pretty
much completely replace your driveline with (at minimum) 1-ton axles,
heavy-duty transfer case/transmission, driveshafts, etc. I think you may
have the Pugeot trans, it's not even adequate for a stock application, never
mind 42's. You're talking about serious coin and serious work.

"c" <c@me.org> wrote in message
news:46d15ceb$0$16520$4c368faf@roadrunner.com...
> Tires that big on a Wrangler will require MAJOR suspension work and a lot
> of fender cutting. Even 35-37" tires take quite a bit of work. If you are
> a total newbie to lifts in general, this might not be a good undertaking
> as your first lift project.
>
> That said, a spring over axle (SOA) conversion is the easiest way to get
> the lift you need, but there are drawbacks. You would probably need some
> lift built in to the springs in addition to the SOA conversion. SOA
> conversions also have the drawback of axle twist. My suggestion is that if
> you want to have this much lift is to Goggle SOA conversions and read up
> on them. There is quite a bit of info on the net.
>
> Chris
>
>
> Garrett wrote:
>> Hello,
>> Can anyone point me in the direction of a complete conversion guide
>> for a '90 YJ?
>> I'm kind of new to it all, but I'm hoping to upgrade the following,
>> along with anything else required to do so:
>>
>> -locking differentials (do I need these for both front and rear?),
>> also probably axle upgrades.
>>
>> -40-42'' tires (Was looking at super swampers, but I might be on
>> pavement too much to make them worthwhile), along with enough of a
>> suspension lift. I get lost here, because the guides I usually see
>> are for a maximum of 35" tires (are there laws against larger tires on
>> the road?).
>>
>> -I have a freshly rebuilt stock engine (4.2L straight 6) right now,
>> and I think I want to keep it. (I saw somewhere online that someone
>> got away with 42"s and the stock 4.2).
>>
>> -I'm pretty sure my transmission is stock, would it need to be
>> upgraded to handle the torque requirements of larger tires?
>>
>> I plan on using my rig mostly on desert/rocky trails and pavement, not
>> so much for snow, and rain isn't much of an issue.
>>
>> I realize I'm a total newbie, but you've gotta start somewhere. All
>> help is VERY greatly appreciated!
>>
>> Thanks!
>> -Garrett
>>

Re: Advice please: '90 YJ Conversion
 

Agreed, not only will it take major suspension work, you will have to pretty
much completely replace your driveline with (at minimum) 1-ton axles,
heavy-duty transfer case/transmission, driveshafts, etc. I think you may
have the Pugeot trans, it's not even adequate for a stock application, never
mind 42's. You're talking about serious coin and serious work.

"c" <c@me.org> wrote in message
news:46d15ceb$0$16520$4c368faf@roadrunner.com...
> Tires that big on a Wrangler will require MAJOR suspension work and a lot
> of fender cutting. Even 35-37" tires take quite a bit of work. If you are
> a total newbie to lifts in general, this might not be a good undertaking
> as your first lift project.
>
> That said, a spring over axle (SOA) conversion is the easiest way to get
> the lift you need, but there are drawbacks. You would probably need some
> lift built in to the springs in addition to the SOA conversion. SOA
> conversions also have the drawback of axle twist. My suggestion is that if
> you want to have this much lift is to Goggle SOA conversions and read up
> on them. There is quite a bit of info on the net.
>
> Chris
>
>
> Garrett wrote:
>> Hello,
>> Can anyone point me in the direction of a complete conversion guide
>> for a '90 YJ?
>> I'm kind of new to it all, but I'm hoping to upgrade the following,
>> along with anything else required to do so:
>>
>> -locking differentials (do I need these for both front and rear?),
>> also probably axle upgrades.
>>
>> -40-42'' tires (Was looking at super swampers, but I might be on
>> pavement too much to make them worthwhile), along with enough of a
>> suspension lift. I get lost here, because the guides I usually see
>> are for a maximum of 35" tires (are there laws against larger tires on
>> the road?).
>>
>> -I have a freshly rebuilt stock engine (4.2L straight 6) right now,
>> and I think I want to keep it. (I saw somewhere online that someone
>> got away with 42"s and the stock 4.2).
>>
>> -I'm pretty sure my transmission is stock, would it need to be
>> upgraded to handle the torque requirements of larger tires?
>>
>> I plan on using my rig mostly on desert/rocky trails and pavement, not
>> so much for snow, and rain isn't much of an issue.
>>
>> I realize I'm a total newbie, but you've gotta start somewhere. All
>> help is VERY greatly appreciated!
>>
>> Thanks!
>> -Garrett
>>

Re: Re: Advice please: '90 YJ Conversion
 

On Sun, 26 Aug 2007 09:05:37 -0400, "Matt Macchiarolo"
<matt@nospamplease.com> wrote:

> I think you may have the Pugeot trans, it's not even adequate for a stock application, never
>mind 42's


The BA 10/5 was used from 1987 to mid 89 when it was replaced by AX15.
That aside the load on a tranny is determined by your effective final
drive ratio more than tires alone because for example 30's with 3.31
gears would place more "strain" on tranny than 40's with 5.38's.
-----------------
TheSnoMan.com

Re: Re: Advice please: '90 YJ Conversion
 

On Sun, 26 Aug 2007 09:05:37 -0400, "Matt Macchiarolo"
<matt@nospamplease.com> wrote:

> I think you may have the Pugeot trans, it's not even adequate for a stock application, never
>mind 42's


The BA 10/5 was used from 1987 to mid 89 when it was replaced by AX15.
That aside the load on a tranny is determined by your effective final
drive ratio more than tires alone because for example 30's with 3.31
gears would place more "strain" on tranny than 40's with 5.38's.
-----------------
TheSnoMan.com

Re: Re: Advice please: '90 YJ Conversion
 

On Sun, 26 Aug 2007 09:05:37 -0400, "Matt Macchiarolo"
<matt@nospamplease.com> wrote:

> I think you may have the Pugeot trans, it's not even adequate for a stock application, never
>mind 42's


The BA 10/5 was used from 1987 to mid 89 when it was replaced by AX15.
That aside the load on a tranny is determined by your effective final
drive ratio more than tires alone because for example 30's with 3.31
gears would place more "strain" on tranny than 40's with 5.38's.
-----------------
TheSnoMan.com

Re: Re: Advice please: '90 YJ Conversion
 

On Sun, 26 Aug 2007 09:05:37 -0400, "Matt Macchiarolo"
<matt@nospamplease.com> wrote:

> I think you may have the Pugeot trans, it's not even adequate for a stock application, never
>mind 42's


The BA 10/5 was used from 1987 to mid 89 when it was replaced by AX15.
That aside the load on a tranny is determined by your effective final
drive ratio more than tires alone because for example 30's with 3.31
gears would place more "strain" on tranny than 40's with 5.38's.
-----------------
TheSnoMan.com

Re: Advice please: '90 YJ Conversion
 

Do a spring over and put it on 33's. You'll love it and it won't break the
bank like going to 42's. A wrangler on 42's is completely assinine. You can
run 33's on your stock axles, but you cannot lock the rear.

To make your wrangler handle 32's is $6000. Minimum.

My best advice would be to get a dana 44/ford 8.8 or XJ 8.25 and put it in
the rear, locked up with a detroit, 4.56 gears. Get 4.56 gears and a
selectable locker for the front.

That traction and gear combination will turn 33's thru damn near anything
without breaking the bank or a lot of parts.

Carl


"Garrett" <Garrett.Loy@gmail.com> wrote in message
news:1188122892.724825.168350@r23g2000prd.googlegr oups.com...
> Hello,
> Can anyone point me in the direction of a complete conversion guide
> for a '90 YJ?
> I'm kind of new to it all, but I'm hoping to upgrade the following,
> along with anything else required to do so:
>
> -locking differentials (do I need these for both front and rear?),
> also probably axle upgrades.
>
> -40-42'' tires (Was looking at super swampers, but I might be on
> pavement too much to make them worthwhile), along with enough of a
> suspension lift. I get lost here, because the guides I usually see
> are for a maximum of 35" tires (are there laws against larger tires on
> the road?).
>
> -I have a freshly rebuilt stock engine (4.2L straight 6) right now,
> and I think I want to keep it. (I saw somewhere online that someone
> got away with 42"s and the stock 4.2).
>
> -I'm pretty sure my transmission is stock, would it need to be
> upgraded to handle the torque requirements of larger tires?
>
> I plan on using my rig mostly on desert/rocky trails and pavement, not
> so much for snow, and rain isn't much of an issue.
>
> I realize I'm a total newbie, but you've gotta start somewhere. All
> help is VERY greatly appreciated!
>
> Thanks!
> -Garrett
>

Re: Advice please: '90 YJ Conversion
 

Do a spring over and put it on 33's. You'll love it and it won't break the
bank like going to 42's. A wrangler on 42's is completely assinine. You can
run 33's on your stock axles, but you cannot lock the rear.

To make your wrangler handle 32's is $6000. Minimum.

My best advice would be to get a dana 44/ford 8.8 or XJ 8.25 and put it in
the rear, locked up with a detroit, 4.56 gears. Get 4.56 gears and a
selectable locker for the front.

That traction and gear combination will turn 33's thru damn near anything
without breaking the bank or a lot of parts.

Carl


"Garrett" <Garrett.Loy@gmail.com> wrote in message
news:1188122892.724825.168350@r23g2000prd.googlegr oups.com...
> Hello,
> Can anyone point me in the direction of a complete conversion guide
> for a '90 YJ?
> I'm kind of new to it all, but I'm hoping to upgrade the following,
> along with anything else required to do so:
>
> -locking differentials (do I need these for both front and rear?),
> also probably axle upgrades.
>
> -40-42'' tires (Was looking at super swampers, but I might be on
> pavement too much to make them worthwhile), along with enough of a
> suspension lift. I get lost here, because the guides I usually see
> are for a maximum of 35" tires (are there laws against larger tires on
> the road?).
>
> -I have a freshly rebuilt stock engine (4.2L straight 6) right now,
> and I think I want to keep it. (I saw somewhere online that someone
> got away with 42"s and the stock 4.2).
>
> -I'm pretty sure my transmission is stock, would it need to be
> upgraded to handle the torque requirements of larger tires?
>
> I plan on using my rig mostly on desert/rocky trails and pavement, not
> so much for snow, and rain isn't much of an issue.
>
> I realize I'm a total newbie, but you've gotta start somewhere. All
> help is VERY greatly appreciated!
>
> Thanks!
> -Garrett
>

Re: Advice please: '90 YJ Conversion
 

Do a spring over and put it on 33's. You'll love it and it won't break the
bank like going to 42's. A wrangler on 42's is completely assinine. You can
run 33's on your stock axles, but you cannot lock the rear.

To make your wrangler handle 32's is $6000. Minimum.

My best advice would be to get a dana 44/ford 8.8 or XJ 8.25 and put it in
the rear, locked up with a detroit, 4.56 gears. Get 4.56 gears and a
selectable locker for the front.

That traction and gear combination will turn 33's thru damn near anything
without breaking the bank or a lot of parts.

Carl


"Garrett" <Garrett.Loy@gmail.com> wrote in message
news:1188122892.724825.168350@r23g2000prd.googlegr oups.com...
> Hello,
> Can anyone point me in the direction of a complete conversion guide
> for a '90 YJ?
> I'm kind of new to it all, but I'm hoping to upgrade the following,
> along with anything else required to do so:
>
> -locking differentials (do I need these for both front and rear?),
> also probably axle upgrades.
>
> -40-42'' tires (Was looking at super swampers, but I might be on
> pavement too much to make them worthwhile), along with enough of a
> suspension lift. I get lost here, because the guides I usually see
> are for a maximum of 35" tires (are there laws against larger tires on
> the road?).
>
> -I have a freshly rebuilt stock engine (4.2L straight 6) right now,
> and I think I want to keep it. (I saw somewhere online that someone
> got away with 42"s and the stock 4.2).
>
> -I'm pretty sure my transmission is stock, would it need to be
> upgraded to handle the torque requirements of larger tires?
>
> I plan on using my rig mostly on desert/rocky trails and pavement, not
> so much for snow, and rain isn't much of an issue.
>
> I realize I'm a total newbie, but you've gotta start somewhere. All
> help is VERY greatly appreciated!
>
> Thanks!
> -Garrett
>