Mike Romain wrote:
> Norman wrote:
>
>>"Mike Romain" <romainm@sympatico.ca> wrote in message
>>news:429A43A9.223D0F37@sympatico.ca...
[snip]

>>>I went to an off road park to lock in my hubs and heard a clacking noise
>>>>when I increased the RPM's in 4 high and 4 low. It sounded like my
>>transfer case was not fully engaged. I unlocked the hubs, drove a few hundred
>>yards and tried again. I heard the same clacking noises like the gear was not
>>>>fully engaged.
[snip]
> Don't eliminate a bad u-joint. You are spinning up the drive train only
> now, so your hubs are fine. A dead u-joint will make a pile of noise
> before it explodes. You have 4 u-joints up front, two on the driveshaft
> and one on each axle.
>
> The next test would be to remove the front driveshaft and put it in 4x4
> with the hubs open.

It could also be a bad transmission mount. Years ago my CJ made a noise
in 4WD that sounds like the OP's description. It turned out that the
bad mount was letting the transmission swing far enough to the right to
let the U-joint on the front shaft whack the floor pan.

 

Mike Romain wrote:
> Norman wrote:
>
>>"Mike Romain" <romainm@sympatico.ca> wrote in message
>>news:429A43A9.223D0F37@sympatico.ca...
[snip]

>>>I went to an off road park to lock in my hubs and heard a clacking noise
>>>>when I increased the RPM's in 4 high and 4 low. It sounded like my
>>transfer case was not fully engaged. I unlocked the hubs, drove a few hundred
>>yards and tried again. I heard the same clacking noises like the gear was not
>>>>fully engaged.
[snip]
> Don't eliminate a bad u-joint. You are spinning up the drive train only
> now, so your hubs are fine. A dead u-joint will make a pile of noise
> before it explodes. You have 4 u-joints up front, two on the driveshaft
> and one on each axle.
>
> The next test would be to remove the front driveshaft and put it in 4x4
> with the hubs open.

It could also be a bad transmission mount. Years ago my CJ made a noise
in 4WD that sounds like the OP's description. It turned out that the
bad mount was letting the transmission swing far enough to the right to
let the U-joint on the front shaft whack the floor pan.

 

Mike Romain wrote:
> Norman wrote:
>
>>"Mike Romain" <romainm@sympatico.ca> wrote in message
>>news:429A43A9.223D0F37@sympatico.ca...
[snip]

>>>I went to an off road park to lock in my hubs and heard a clacking noise
>>>>when I increased the RPM's in 4 high and 4 low. It sounded like my
>>transfer case was not fully engaged. I unlocked the hubs, drove a few hundred
>>yards and tried again. I heard the same clacking noises like the gear was not
>>>>fully engaged.
[snip]
> Don't eliminate a bad u-joint. You are spinning up the drive train only
> now, so your hubs are fine. A dead u-joint will make a pile of noise
> before it explodes. You have 4 u-joints up front, two on the driveshaft
> and one on each axle.
>
> The next test would be to remove the front driveshaft and put it in 4x4
> with the hubs open.

It could also be a bad transmission mount. Years ago my CJ made a noise
in 4WD that sounds like the OP's description. It turned out that the
bad mount was letting the transmission swing far enough to the right to
let the U-joint on the front shaft whack the floor pan.

 

"Mike Romain" <romainm@sympatico.ca> wrote in message
news:429B7323.F953753@sympatico.ca...
> Norman wrote:
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:429A43A9.223D0F37@sympatico.ca...
> > > That really sounds like one of your hubs came loose and blew up or the
> > > grease inside is sooo dry it isn't letting the lock ring slide down to
> > > fully latch. The hubs are supposed to be periodically cleaned to get
> > > the mud out and they call for a 'little' light white grease.
> > >
> > > To verify, I would go in 4x4 with the hubs open and see if you have
> > > noise, then lock one hub at a time to find the stuck or busted one.
> > >
> > > I blow the stupid stock ones up all the time. I now have one Warn
lock
> > > with the other going in as soon as I bust the next one.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > Norman wrote:
> > > >
> > > > Until 8 months ago, I faithfully locked in my hubs and drove 5 miles
to
> > > > lubricate the axle while driving off road. Last September I moved
from
> > the
> > > > AZ desert to Washington State. My Jeep has been parked for 7 months
> > after
> > > > driving it 1500 miles to get it here.
> > > >
> > > > I went to an off road park to lock in my hubs and heard a clacking
noise
> > > > when I increased the RPM's in 4 high and 4 low. It sounded like my
> > transfer
> > > > case was not fully engaged. I unlocked the hubs, drove a few
hundred
> > yards
> > > > and tried again. I heard the same clacking noises like the gear was
not
> > > > fully engaged.
> > > >
> > > > My wife bought our Jeep new in 1982, so we know it's entire history.
We
> > have
> > > > never had any problem like this before. Am I looking at a simple
> > > > adjustment, or do I need to have major hardware replaced?
> > > >
> > > > Thanks in advance,
> > > > Norman
>
> --------------------------------------------------------------------------
--
> > -----
> > I engaged 4 low without locking either hub, stomped on the gas and
heard,
> > the same awful clanking noise. I'm assuming that the transfer case is
the
> > problem.
> >
>
> Don't eliminate a bad u-joint. You are spinning up the drive train only
> now, so your hubs are fine. A dead u-joint will make a pile of noise
> before it explodes. You have 4 u-joints up front, two on the driveshaft
> and one on each axle.
>
> The next test would be to remove the front driveshaft and put it in 4x4
> with the hubs open.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
-----------------------------------------
I now have 2 new U joints on the front drive shaft. When I engage 4L
without locking the hubs, I still hear the same awful clanking noise.

Have I now narrowed the problem down to the transfer case, or should I check
the mounts next?

I appreciate the guidance.

Norman

 

"Mike Romain" <romainm@sympatico.ca> wrote in message
news:429B7323.F953753@sympatico.ca...
> Norman wrote:
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:429A43A9.223D0F37@sympatico.ca...
> > > That really sounds like one of your hubs came loose and blew up or the
> > > grease inside is sooo dry it isn't letting the lock ring slide down to
> > > fully latch. The hubs are supposed to be periodically cleaned to get
> > > the mud out and they call for a 'little' light white grease.
> > >
> > > To verify, I would go in 4x4 with the hubs open and see if you have
> > > noise, then lock one hub at a time to find the stuck or busted one.
> > >
> > > I blow the stupid stock ones up all the time. I now have one Warn
lock
> > > with the other going in as soon as I bust the next one.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > Norman wrote:
> > > >
> > > > Until 8 months ago, I faithfully locked in my hubs and drove 5 miles
to
> > > > lubricate the axle while driving off road. Last September I moved
from
> > the
> > > > AZ desert to Washington State. My Jeep has been parked for 7 months
> > after
> > > > driving it 1500 miles to get it here.
> > > >
> > > > I went to an off road park to lock in my hubs and heard a clacking
noise
> > > > when I increased the RPM's in 4 high and 4 low. It sounded like my
> > transfer
> > > > case was not fully engaged. I unlocked the hubs, drove a few
hundred
> > yards
> > > > and tried again. I heard the same clacking noises like the gear was
not
> > > > fully engaged.
> > > >
> > > > My wife bought our Jeep new in 1982, so we know it's entire history.
We
> > have
> > > > never had any problem like this before. Am I looking at a simple
> > > > adjustment, or do I need to have major hardware replaced?
> > > >
> > > > Thanks in advance,
> > > > Norman
>
> --------------------------------------------------------------------------
--
> > -----
> > I engaged 4 low without locking either hub, stomped on the gas and
heard,
> > the same awful clanking noise. I'm assuming that the transfer case is
the
> > problem.
> >
>
> Don't eliminate a bad u-joint. You are spinning up the drive train only
> now, so your hubs are fine. A dead u-joint will make a pile of noise
> before it explodes. You have 4 u-joints up front, two on the driveshaft
> and one on each axle.
>
> The next test would be to remove the front driveshaft and put it in 4x4
> with the hubs open.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
-----------------------------------------
I now have 2 new U joints on the front drive shaft. When I engage 4L
without locking the hubs, I still hear the same awful clanking noise.

Have I now narrowed the problem down to the transfer case, or should I check
the mounts next?

I appreciate the guidance.

Norman

 

"Mike Romain" <romainm@sympatico.ca> wrote in message
news:429B7323.F953753@sympatico.ca...
> Norman wrote:
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:429A43A9.223D0F37@sympatico.ca...
> > > That really sounds like one of your hubs came loose and blew up or the
> > > grease inside is sooo dry it isn't letting the lock ring slide down to
> > > fully latch. The hubs are supposed to be periodically cleaned to get
> > > the mud out and they call for a 'little' light white grease.
> > >
> > > To verify, I would go in 4x4 with the hubs open and see if you have
> > > noise, then lock one hub at a time to find the stuck or busted one.
> > >
> > > I blow the stupid stock ones up all the time. I now have one Warn
lock
> > > with the other going in as soon as I bust the next one.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > Norman wrote:
> > > >
> > > > Until 8 months ago, I faithfully locked in my hubs and drove 5 miles
to
> > > > lubricate the axle while driving off road. Last September I moved
from
> > the
> > > > AZ desert to Washington State. My Jeep has been parked for 7 months
> > after
> > > > driving it 1500 miles to get it here.
> > > >
> > > > I went to an off road park to lock in my hubs and heard a clacking
noise
> > > > when I increased the RPM's in 4 high and 4 low. It sounded like my
> > transfer
> > > > case was not fully engaged. I unlocked the hubs, drove a few
hundred
> > yards
> > > > and tried again. I heard the same clacking noises like the gear was
not
> > > > fully engaged.
> > > >
> > > > My wife bought our Jeep new in 1982, so we know it's entire history.
We
> > have
> > > > never had any problem like this before. Am I looking at a simple
> > > > adjustment, or do I need to have major hardware replaced?
> > > >
> > > > Thanks in advance,
> > > > Norman
>
> --------------------------------------------------------------------------
--
> > -----
> > I engaged 4 low without locking either hub, stomped on the gas and
heard,
> > the same awful clanking noise. I'm assuming that the transfer case is
the
> > problem.
> >
>
> Don't eliminate a bad u-joint. You are spinning up the drive train only
> now, so your hubs are fine. A dead u-joint will make a pile of noise
> before it explodes. You have 4 u-joints up front, two on the driveshaft
> and one on each axle.
>
> The next test would be to remove the front driveshaft and put it in 4x4
> with the hubs open.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
-----------------------------------------
I now have 2 new U joints on the front drive shaft. When I engage 4L
without locking the hubs, I still hear the same awful clanking noise.

Have I now narrowed the problem down to the transfer case, or should I check
the mounts next?

I appreciate the guidance.

Norman

 

"Mike Romain" <romainm@sympatico.ca> wrote in message
news:429B7323.F953753@sympatico.ca...
> Norman wrote:
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:429A43A9.223D0F37@sympatico.ca...
> > > That really sounds like one of your hubs came loose and blew up or the
> > > grease inside is sooo dry it isn't letting the lock ring slide down to
> > > fully latch. The hubs are supposed to be periodically cleaned to get
> > > the mud out and they call for a 'little' light white grease.
> > >
> > > To verify, I would go in 4x4 with the hubs open and see if you have
> > > noise, then lock one hub at a time to find the stuck or busted one.
> > >
> > > I blow the stupid stock ones up all the time. I now have one Warn
lock
> > > with the other going in as soon as I bust the next one.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > Norman wrote:
> > > >
> > > > Until 8 months ago, I faithfully locked in my hubs and drove 5 miles
to
> > > > lubricate the axle while driving off road. Last September I moved
from
> > the
> > > > AZ desert to Washington State. My Jeep has been parked for 7 months
> > after
> > > > driving it 1500 miles to get it here.
> > > >
> > > > I went to an off road park to lock in my hubs and heard a clacking
noise
> > > > when I increased the RPM's in 4 high and 4 low. It sounded like my
> > transfer
> > > > case was not fully engaged. I unlocked the hubs, drove a few
hundred
> > yards
> > > > and tried again. I heard the same clacking noises like the gear was
not
> > > > fully engaged.
> > > >
> > > > My wife bought our Jeep new in 1982, so we know it's entire history.
We
> > have
> > > > never had any problem like this before. Am I looking at a simple
> > > > adjustment, or do I need to have major hardware replaced?
> > > >
> > > > Thanks in advance,
> > > > Norman
>
> --------------------------------------------------------------------------
--
> > -----
> > I engaged 4 low without locking either hub, stomped on the gas and
heard,
> > the same awful clanking noise. I'm assuming that the transfer case is
the
> > problem.
> >
>
> Don't eliminate a bad u-joint. You are spinning up the drive train only
> now, so your hubs are fine. A dead u-joint will make a pile of noise
> before it explodes. You have 4 u-joints up front, two on the driveshaft
> and one on each axle.
>
> The next test would be to remove the front driveshaft and put it in 4x4
> with the hubs open.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
-----------------------------------------
I now have 2 new U joints on the front drive shaft. When I engage 4L
without locking the hubs, I still hear the same awful clanking noise.

Have I now narrowed the problem down to the transfer case, or should I check
the mounts next?

I appreciate the guidance.

Norman

 

"Lee Ayrton" <layrton@panix.com> wrote in message
news:d7hons$6ld$1@reader1.panix.com...
> Mike Romain wrote:
> > Norman wrote:
> >
> >>"Mike Romain" <romainm@sympatico.ca> wrote in message
> >>news:429A43A9.223D0F37@sympatico.ca...
> [snip]
>
> >>>I went to an off road park to lock in my hubs and heard a clacking
noise
> >>>>when I increased the RPM's in 4 high and 4 low. It sounded like my
> >>transfer case was not fully engaged. I unlocked the hubs, drove a few
hundred
> >>yards and tried again. I heard the same clacking noises like the gear
was not
> >>>>fully engaged.
> [snip]
> > Don't eliminate a bad u-joint. You are spinning up the drive train only
> > now, so your hubs are fine. A dead u-joint will make a pile of noise
> > before it explodes. You have 4 u-joints up front, two on the driveshaft
> > and one on each axle.
> >
> > The next test would be to remove the front driveshaft and put it in 4x4
> > with the hubs open.
>
> It could also be a bad transmission mount. Years ago my CJ made a noise
> in 4WD that sounds like the OP's description. It turned out that the
> bad mount was letting the transmission swing far enough to the right to
> let the U-joint on the front shaft whack the floor pan.
>
--------------------------------------------------------------
What is the best way to check the mount?

Thanks,

Norman

 

"Lee Ayrton" <layrton@panix.com> wrote in message
news:d7hons$6ld$1@reader1.panix.com...
> Mike Romain wrote:
> > Norman wrote:
> >
> >>"Mike Romain" <romainm@sympatico.ca> wrote in message
> >>news:429A43A9.223D0F37@sympatico.ca...
> [snip]
>
> >>>I went to an off road park to lock in my hubs and heard a clacking
noise
> >>>>when I increased the RPM's in 4 high and 4 low. It sounded like my
> >>transfer case was not fully engaged. I unlocked the hubs, drove a few
hundred
> >>yards and tried again. I heard the same clacking noises like the gear
was not
> >>>>fully engaged.
> [snip]
> > Don't eliminate a bad u-joint. You are spinning up the drive train only
> > now, so your hubs are fine. A dead u-joint will make a pile of noise
> > before it explodes. You have 4 u-joints up front, two on the driveshaft
> > and one on each axle.
> >
> > The next test would be to remove the front driveshaft and put it in 4x4
> > with the hubs open.
>
> It could also be a bad transmission mount. Years ago my CJ made a noise
> in 4WD that sounds like the OP's description. It turned out that the
> bad mount was letting the transmission swing far enough to the right to
> let the U-joint on the front shaft whack the floor pan.
>
--------------------------------------------------------------
What is the best way to check the mount?

Thanks,

Norman

 

"Lee Ayrton" <layrton@panix.com> wrote in message
news:d7hons$6ld$1@reader1.panix.com...
> Mike Romain wrote:
> > Norman wrote:
> >
> >>"Mike Romain" <romainm@sympatico.ca> wrote in message
> >>news:429A43A9.223D0F37@sympatico.ca...
> [snip]
>
> >>>I went to an off road park to lock in my hubs and heard a clacking
noise
> >>>>when I increased the RPM's in 4 high and 4 low. It sounded like my
> >>transfer case was not fully engaged. I unlocked the hubs, drove a few
hundred
> >>yards and tried again. I heard the same clacking noises like the gear
was not
> >>>>fully engaged.
> [snip]
> > Don't eliminate a bad u-joint. You are spinning up the drive train only
> > now, so your hubs are fine. A dead u-joint will make a pile of noise
> > before it explodes. You have 4 u-joints up front, two on the driveshaft
> > and one on each axle.
> >
> > The next test would be to remove the front driveshaft and put it in 4x4
> > with the hubs open.
>
> It could also be a bad transmission mount. Years ago my CJ made a noise
> in 4WD that sounds like the OP's description. It turned out that the
> bad mount was letting the transmission swing far enough to the right to
> let the U-joint on the front shaft whack the floor pan.
>
--------------------------------------------------------------
What is the best way to check the mount?

Thanks,

Norman