Re: Jeep TJ Differential Problem
 

On Mar 22, 10:56 am, "Earle Horton" <a...@gracioso.usa> wrote:
> Bill is right. You wouldn't get from here to there, whirring noise or no,
> with the ring gear bolts broken, unless the vehicle were in four wheel
> drive.
>
> Your carrier (part that the ring gear bolts to) is likely damaged too.
> Replacing the ring and pinion is a job for a professional.
>
> Earle
>
> "jim9731" <Jim9...@gmail.com> wrote in message
>
> news:1174541786.770580.58810@y80g2000hsf.googlegro ups.com...
>
> > Hello all first post here.....
>
> > I have been having some issues with a whirring noise in the rear end
> > of my TJ. I assumed that it was the transfer case so I tore that down
> > and opened it up and found no issues. So upon further inspection I
> > spun the rear axle shaft and it spun freely with the wheels on the
> > ground?????
>
> > I proceeded to tear off the diff cover and noticed that the bolts have
> > sheared off the ring gear. There were several bolts laying in the
> > bottom of the differential case.
>
> > So my questions are... why would this happen? Can I just replace the
> > ring and pinion and that will be the fix. I was not 4 wheeling or
> > abusing the vehicle, but it does have 120000 miles on it.
>
> > Any response will be appreciated.


So it looks like there is minimal wear to the ring gear and pinion
gears. Just a few minor nicks but not on the gears themselves, more
on the body of the gear where it would not come in contact with
another gear. Is it possible to just pull the ring gear and easy out
the studs and install new bolts and be good as new? Or is this
something I should leave this to the pros?

Re: Jeep TJ Differential Problem
 

On Mar 22, 10:56 am, "Earle Horton" <a...@gracioso.usa> wrote:
> Bill is right. You wouldn't get from here to there, whirring noise or no,
> with the ring gear bolts broken, unless the vehicle were in four wheel
> drive.
>
> Your carrier (part that the ring gear bolts to) is likely damaged too.
> Replacing the ring and pinion is a job for a professional.
>
> Earle
>
> "jim9731" <Jim9...@gmail.com> wrote in message
>
> news:1174541786.770580.58810@y80g2000hsf.googlegro ups.com...
>
> > Hello all first post here.....
>
> > I have been having some issues with a whirring noise in the rear end
> > of my TJ. I assumed that it was the transfer case so I tore that down
> > and opened it up and found no issues. So upon further inspection I
> > spun the rear axle shaft and it spun freely with the wheels on the
> > ground?????
>
> > I proceeded to tear off the diff cover and noticed that the bolts have
> > sheared off the ring gear. There were several bolts laying in the
> > bottom of the differential case.
>
> > So my questions are... why would this happen? Can I just replace the
> > ring and pinion and that will be the fix. I was not 4 wheeling or
> > abusing the vehicle, but it does have 120000 miles on it.
>
> > Any response will be appreciated.


So it looks like there is minimal wear to the ring gear and pinion
gears. Just a few minor nicks but not on the gears themselves, more
on the body of the gear where it would not come in contact with
another gear. Is it possible to just pull the ring gear and easy out
the studs and install new bolts and be good as new? Or is this
something I should leave this to the pros?

Re: Jeep TJ Differential Problem
 

On Mar 22, 10:56 am, "Earle Horton" <a...@gracioso.usa> wrote:
> Bill is right. You wouldn't get from here to there, whirring noise or no,
> with the ring gear bolts broken, unless the vehicle were in four wheel
> drive.
>
> Your carrier (part that the ring gear bolts to) is likely damaged too.
> Replacing the ring and pinion is a job for a professional.
>
> Earle
>
> "jim9731" <Jim9...@gmail.com> wrote in message
>
> news:1174541786.770580.58810@y80g2000hsf.googlegro ups.com...
>
> > Hello all first post here.....
>
> > I have been having some issues with a whirring noise in the rear end
> > of my TJ. I assumed that it was the transfer case so I tore that down
> > and opened it up and found no issues. So upon further inspection I
> > spun the rear axle shaft and it spun freely with the wheels on the
> > ground?????
>
> > I proceeded to tear off the diff cover and noticed that the bolts have
> > sheared off the ring gear. There were several bolts laying in the
> > bottom of the differential case.
>
> > So my questions are... why would this happen? Can I just replace the
> > ring and pinion and that will be the fix. I was not 4 wheeling or
> > abusing the vehicle, but it does have 120000 miles on it.
>
> > Any response will be appreciated.


So it looks like there is minimal wear to the ring gear and pinion
gears. Just a few minor nicks but not on the gears themselves, more
on the body of the gear where it would not come in contact with
another gear. Is it possible to just pull the ring gear and easy out
the studs and install new bolts and be good as new? Or is this
something I should leave this to the pros?

Re: Jeep TJ Differential Problem
 

"jim9731" <Jim9731@gmail.com> wrote in message
news:1174583831.803368.305800@e1g2000hsg.googlegro ups.com...
> On Mar 22, 10:56 am, "Earle Horton" <a...@gracioso.usa> wrote:
> > Bill is right. You wouldn't get from here to there, whirring noise or
> > no, with the ring gear bolts broken, unless the vehicle were in four
> > wheel drive.
> >
> > Your carrier (part that the ring gear bolts to) is likely damaged too.
> > Replacing the ring and pinion is a job for a professional.
> >
> > Earle
> >
> > "jim9731" <Jim9...@gmail.com> wrote in message
> >
> > news:1174541786.770580.58810@y80g2000hsf.googlegro ups.com...
> >
> > > Hello all first post here.....
> >
> > > I have been having some issues with a whirring noise in the rear end
> > > of my TJ. I assumed that it was the transfer case so I tore that down
> > > and opened it up and found no issues. So upon further inspection I
> > > spun the rear axle shaft and it spun freely with the wheels on the
> > > ground?????
> >
> > > I proceeded to tear off the diff cover and noticed that the bolts have
> > > sheared off the ring gear. There were several bolts laying in the
> > > bottom of the differential case.
> >
> > > So my questions are... why would this happen? Can I just replace the
> > > ring and pinion and that will be the fix. I was not 4 wheeling or
> > > abusing the vehicle, but it does have 120000 miles on it.
> >
> > > Any response will be appreciated.
>
>
> So it looks like there is minimal wear to the ring gear and pinion
> gears. Just a few minor nicks but not on the gears themselves, more
> on the body of the gear where it would not come in contact with
> another gear. Is it possible to just pull the ring gear and easy out
> the studs and install new bolts and be good as new? Or is this
> something I should leave this to the pros?
>
I wouldn't guarantee the job. You can't tell about wear to the ring and
pinion unless you have looked at a lot of them, or when you hear the howls
of protest at road speed. The bolts are hardened and many are left hand
thread. Pay particular attention to the number and position of carrier
bearing shims, and use high strength thread locker on the new bolts. What
you are proposing is "possible" but a replacement open differential carrier
probably wouldn't be expensive enough to justify the effort to drill out the
old bolts.

I don't have much problem swapping in a new carrier, for example to get a
locker or limited slip, but there is some expertise involved and I wouldn't
recommend that an amateur attempt it if there is the possibility of existing
damage.

The major part of the cost to get this done right is in the ring and pinion
set up cost, which is best left to professionals or at least those with the
proper special tools. 4x4 specialty shops? Heh, better go for a ring and
pinion specialist.

Earle

Re: Jeep TJ Differential Problem
 

"jim9731" <Jim9731@gmail.com> wrote in message
news:1174583831.803368.305800@e1g2000hsg.googlegro ups.com...
> On Mar 22, 10:56 am, "Earle Horton" <a...@gracioso.usa> wrote:
> > Bill is right. You wouldn't get from here to there, whirring noise or
> > no, with the ring gear bolts broken, unless the vehicle were in four
> > wheel drive.
> >
> > Your carrier (part that the ring gear bolts to) is likely damaged too.
> > Replacing the ring and pinion is a job for a professional.
> >
> > Earle
> >
> > "jim9731" <Jim9...@gmail.com> wrote in message
> >
> > news:1174541786.770580.58810@y80g2000hsf.googlegro ups.com...
> >
> > > Hello all first post here.....
> >
> > > I have been having some issues with a whirring noise in the rear end
> > > of my TJ. I assumed that it was the transfer case so I tore that down
> > > and opened it up and found no issues. So upon further inspection I
> > > spun the rear axle shaft and it spun freely with the wheels on the
> > > ground?????
> >
> > > I proceeded to tear off the diff cover and noticed that the bolts have
> > > sheared off the ring gear. There were several bolts laying in the
> > > bottom of the differential case.
> >
> > > So my questions are... why would this happen? Can I just replace the
> > > ring and pinion and that will be the fix. I was not 4 wheeling or
> > > abusing the vehicle, but it does have 120000 miles on it.
> >
> > > Any response will be appreciated.
>
>
> So it looks like there is minimal wear to the ring gear and pinion
> gears. Just a few minor nicks but not on the gears themselves, more
> on the body of the gear where it would not come in contact with
> another gear. Is it possible to just pull the ring gear and easy out
> the studs and install new bolts and be good as new? Or is this
> something I should leave this to the pros?
>
I wouldn't guarantee the job. You can't tell about wear to the ring and
pinion unless you have looked at a lot of them, or when you hear the howls
of protest at road speed. The bolts are hardened and many are left hand
thread. Pay particular attention to the number and position of carrier
bearing shims, and use high strength thread locker on the new bolts. What
you are proposing is "possible" but a replacement open differential carrier
probably wouldn't be expensive enough to justify the effort to drill out the
old bolts.

I don't have much problem swapping in a new carrier, for example to get a
locker or limited slip, but there is some expertise involved and I wouldn't
recommend that an amateur attempt it if there is the possibility of existing
damage.

The major part of the cost to get this done right is in the ring and pinion
set up cost, which is best left to professionals or at least those with the
proper special tools. 4x4 specialty shops? Heh, better go for a ring and
pinion specialist.

Earle

Re: Jeep TJ Differential Problem
 

"jim9731" <Jim9731@gmail.com> wrote in message
news:1174583831.803368.305800@e1g2000hsg.googlegro ups.com...
> On Mar 22, 10:56 am, "Earle Horton" <a...@gracioso.usa> wrote:
> > Bill is right. You wouldn't get from here to there, whirring noise or
> > no, with the ring gear bolts broken, unless the vehicle were in four
> > wheel drive.
> >
> > Your carrier (part that the ring gear bolts to) is likely damaged too.
> > Replacing the ring and pinion is a job for a professional.
> >
> > Earle
> >
> > "jim9731" <Jim9...@gmail.com> wrote in message
> >
> > news:1174541786.770580.58810@y80g2000hsf.googlegro ups.com...
> >
> > > Hello all first post here.....
> >
> > > I have been having some issues with a whirring noise in the rear end
> > > of my TJ. I assumed that it was the transfer case so I tore that down
> > > and opened it up and found no issues. So upon further inspection I
> > > spun the rear axle shaft and it spun freely with the wheels on the
> > > ground?????
> >
> > > I proceeded to tear off the diff cover and noticed that the bolts have
> > > sheared off the ring gear. There were several bolts laying in the
> > > bottom of the differential case.
> >
> > > So my questions are... why would this happen? Can I just replace the
> > > ring and pinion and that will be the fix. I was not 4 wheeling or
> > > abusing the vehicle, but it does have 120000 miles on it.
> >
> > > Any response will be appreciated.
>
>
> So it looks like there is minimal wear to the ring gear and pinion
> gears. Just a few minor nicks but not on the gears themselves, more
> on the body of the gear where it would not come in contact with
> another gear. Is it possible to just pull the ring gear and easy out
> the studs and install new bolts and be good as new? Or is this
> something I should leave this to the pros?
>
I wouldn't guarantee the job. You can't tell about wear to the ring and
pinion unless you have looked at a lot of them, or when you hear the howls
of protest at road speed. The bolts are hardened and many are left hand
thread. Pay particular attention to the number and position of carrier
bearing shims, and use high strength thread locker on the new bolts. What
you are proposing is "possible" but a replacement open differential carrier
probably wouldn't be expensive enough to justify the effort to drill out the
old bolts.

I don't have much problem swapping in a new carrier, for example to get a
locker or limited slip, but there is some expertise involved and I wouldn't
recommend that an amateur attempt it if there is the possibility of existing
damage.

The major part of the cost to get this done right is in the ring and pinion
set up cost, which is best left to professionals or at least those with the
proper special tools. 4x4 specialty shops? Heh, better go for a ring and
pinion specialist.

Earle

Re: Jeep TJ Differential Problem
 

On Mar 22, 2:56 pm, "Earle Horton" <a...@gracioso.usa> wrote:
> "jim9731" <Jim9...@gmail.com> wrote in message
>
> news:1174583831.803368.305800@e1g2000hsg.googlegro ups.com...
>
> > On Mar 22, 10:56 am, "Earle Horton" <a...@gracioso.usa> wrote:
> > > Bill is right. You wouldn't get from here to there, whirring noise or
> > > no, with the ring gear bolts broken, unless the vehicle were in four
> > > wheel drive.
>
> > > Your carrier (part that the ring gear bolts to) is likely damaged too.
> > > Replacing the ring and pinion is a job for a professional.
>
> > > Earle
>
> > > "jim9731" <Jim9...@gmail.com> wrote in message
>
> > >news:1174541786.770580.58810@y80g2000hsf.googlegr oups.com...
>
> > > > Hello all first post here.....
>
> > > > I have been having some issues with a whirring noise in the rear end
> > > > of my TJ. I assumed that it was the transfer case so I tore that down
> > > > and opened it up and found no issues. So upon further inspection I
> > > > spun the rear axle shaft and it spun freely with the wheels on the
> > > > ground?????
>
> > > > I proceeded to tear off the diff cover and noticed that the bolts have
> > > > sheared off the ring gear. There were several bolts laying in the
> > > > bottom of the differential case.
>
> > > > So my questions are... why would this happen? Can I just replace the
> > > > ring and pinion and that will be the fix. I was not 4 wheeling or
> > > > abusing the vehicle, but it does have 120000 miles on it.
>
> > > > Any response will be appreciated.
>
> > So it looks like there is minimal wear to the ring gear and pinion
> > gears. Just a few minor nicks but not on the gears themselves, more
> > on the body of the gear where it would not come in contact with
> > another gear. Is it possible to just pull the ring gear and easy out
> > the studs and install new bolts and be good as new? Or is this
> > something I should leave this to the pros?
>
> I wouldn't guarantee the job. You can't tell about wear to the ring and
> pinion unless you have looked at a lot of them, or when you hear the howls
> of protest at road speed. The bolts are hardened and many are left hand
> thread. Pay particular attention to the number and position of carrier
> bearing shims, and use high strength thread locker on the new bolts. What
> you are proposing is "possible" but a replacement open differential carrier
> probably wouldn't be expensive enough to justify the effort to drill out the
> old bolts.
>
> I don't have much problem swapping in a new carrier, for example to get a
> locker or limited slip, but there is some expertise involved and I wouldn't
> recommend that an amateur attempt it if there is the possibility of existing
> damage.
>
> The major part of the cost to get this done right is in the ring and pinion
> set up cost, which is best left to professionals or at least those with the
> proper special tools. 4x4 specialty shops? Heh, better go for a ring and
> pinion specialist.
>
> Earle

Just an update....

I did the repair myself and all went well. Unbelievable that no gears
were broken or chipped with the bolts laying in the diff case.

All is well and I am back on the road again.

I appreciate all the advice.

Re: Jeep TJ Differential Problem
 

On Mar 22, 2:56 pm, "Earle Horton" <a...@gracioso.usa> wrote:
> "jim9731" <Jim9...@gmail.com> wrote in message
>
> news:1174583831.803368.305800@e1g2000hsg.googlegro ups.com...
>
> > On Mar 22, 10:56 am, "Earle Horton" <a...@gracioso.usa> wrote:
> > > Bill is right. You wouldn't get from here to there, whirring noise or
> > > no, with the ring gear bolts broken, unless the vehicle were in four
> > > wheel drive.
>
> > > Your carrier (part that the ring gear bolts to) is likely damaged too.
> > > Replacing the ring and pinion is a job for a professional.
>
> > > Earle
>
> > > "jim9731" <Jim9...@gmail.com> wrote in message
>
> > >news:1174541786.770580.58810@y80g2000hsf.googlegr oups.com...
>
> > > > Hello all first post here.....
>
> > > > I have been having some issues with a whirring noise in the rear end
> > > > of my TJ. I assumed that it was the transfer case so I tore that down
> > > > and opened it up and found no issues. So upon further inspection I
> > > > spun the rear axle shaft and it spun freely with the wheels on the
> > > > ground?????
>
> > > > I proceeded to tear off the diff cover and noticed that the bolts have
> > > > sheared off the ring gear. There were several bolts laying in the
> > > > bottom of the differential case.
>
> > > > So my questions are... why would this happen? Can I just replace the
> > > > ring and pinion and that will be the fix. I was not 4 wheeling or
> > > > abusing the vehicle, but it does have 120000 miles on it.
>
> > > > Any response will be appreciated.
>
> > So it looks like there is minimal wear to the ring gear and pinion
> > gears. Just a few minor nicks but not on the gears themselves, more
> > on the body of the gear where it would not come in contact with
> > another gear. Is it possible to just pull the ring gear and easy out
> > the studs and install new bolts and be good as new? Or is this
> > something I should leave this to the pros?
>
> I wouldn't guarantee the job. You can't tell about wear to the ring and
> pinion unless you have looked at a lot of them, or when you hear the howls
> of protest at road speed. The bolts are hardened and many are left hand
> thread. Pay particular attention to the number and position of carrier
> bearing shims, and use high strength thread locker on the new bolts. What
> you are proposing is "possible" but a replacement open differential carrier
> probably wouldn't be expensive enough to justify the effort to drill out the
> old bolts.
>
> I don't have much problem swapping in a new carrier, for example to get a
> locker or limited slip, but there is some expertise involved and I wouldn't
> recommend that an amateur attempt it if there is the possibility of existing
> damage.
>
> The major part of the cost to get this done right is in the ring and pinion
> set up cost, which is best left to professionals or at least those with the
> proper special tools. 4x4 specialty shops? Heh, better go for a ring and
> pinion specialist.
>
> Earle

Just an update....

I did the repair myself and all went well. Unbelievable that no gears
were broken or chipped with the bolts laying in the diff case.

All is well and I am back on the road again.

I appreciate all the advice.

Re: Jeep TJ Differential Problem
 

On Mar 22, 2:56 pm, "Earle Horton" <a...@gracioso.usa> wrote:
> "jim9731" <Jim9...@gmail.com> wrote in message
>
> news:1174583831.803368.305800@e1g2000hsg.googlegro ups.com...
>
> > On Mar 22, 10:56 am, "Earle Horton" <a...@gracioso.usa> wrote:
> > > Bill is right. You wouldn't get from here to there, whirring noise or
> > > no, with the ring gear bolts broken, unless the vehicle were in four
> > > wheel drive.
>
> > > Your carrier (part that the ring gear bolts to) is likely damaged too.
> > > Replacing the ring and pinion is a job for a professional.
>
> > > Earle
>
> > > "jim9731" <Jim9...@gmail.com> wrote in message
>
> > >news:1174541786.770580.58810@y80g2000hsf.googlegr oups.com...
>
> > > > Hello all first post here.....
>
> > > > I have been having some issues with a whirring noise in the rear end
> > > > of my TJ. I assumed that it was the transfer case so I tore that down
> > > > and opened it up and found no issues. So upon further inspection I
> > > > spun the rear axle shaft and it spun freely with the wheels on the
> > > > ground?????
>
> > > > I proceeded to tear off the diff cover and noticed that the bolts have
> > > > sheared off the ring gear. There were several bolts laying in the
> > > > bottom of the differential case.
>
> > > > So my questions are... why would this happen? Can I just replace the
> > > > ring and pinion and that will be the fix. I was not 4 wheeling or
> > > > abusing the vehicle, but it does have 120000 miles on it.
>
> > > > Any response will be appreciated.
>
> > So it looks like there is minimal wear to the ring gear and pinion
> > gears. Just a few minor nicks but not on the gears themselves, more
> > on the body of the gear where it would not come in contact with
> > another gear. Is it possible to just pull the ring gear and easy out
> > the studs and install new bolts and be good as new? Or is this
> > something I should leave this to the pros?
>
> I wouldn't guarantee the job. You can't tell about wear to the ring and
> pinion unless you have looked at a lot of them, or when you hear the howls
> of protest at road speed. The bolts are hardened and many are left hand
> thread. Pay particular attention to the number and position of carrier
> bearing shims, and use high strength thread locker on the new bolts. What
> you are proposing is "possible" but a replacement open differential carrier
> probably wouldn't be expensive enough to justify the effort to drill out the
> old bolts.
>
> I don't have much problem swapping in a new carrier, for example to get a
> locker or limited slip, but there is some expertise involved and I wouldn't
> recommend that an amateur attempt it if there is the possibility of existing
> damage.
>
> The major part of the cost to get this done right is in the ring and pinion
> set up cost, which is best left to professionals or at least those with the
> proper special tools. 4x4 specialty shops? Heh, better go for a ring and
> pinion specialist.
>
> Earle

Just an update....

I did the repair myself and all went well. Unbelievable that no gears
were broken or chipped with the bolts laying in the diff case.

All is well and I am back on the road again.

I appreciate all the advice.