Mike Romain did pass the time by typing:
> From all the posts about failed rear ends in vehicles made in the last 5
> or 6 years or so by DC they obviously have done something wrong with the
> design.
>
> Not changing the oil in 48K is 'not' a reason for a failed rear end.
>
> You don't hear of CJ or YJ or Cherokee rear end failures, but grands,
> well... And a bunch of TJ's too????

#1 cause of failure in the ZJ is having some nimrod jack the rear up
under the diff. I see it all the time at a local tire shop.

--
DougW

 

Mike Romain did pass the time by typing:
> From all the posts about failed rear ends in vehicles made in the last 5
> or 6 years or so by DC they obviously have done something wrong with the
> design.
>
> Not changing the oil in 48K is 'not' a reason for a failed rear end.
>
> You don't hear of CJ or YJ or Cherokee rear end failures, but grands,
> well... And a bunch of TJ's too????

#1 cause of failure in the ZJ is having some nimrod jack the rear up
under the diff. I see it all the time at a local tire shop.

--
DougW

 

Mike Romain did pass the time by typing:
> From all the posts about failed rear ends in vehicles made in the last 5
> or 6 years or so by DC they obviously have done something wrong with the
> design.
>
> Not changing the oil in 48K is 'not' a reason for a failed rear end.
>
> You don't hear of CJ or YJ or Cherokee rear end failures, but grands,
> well... And a bunch of TJ's too????

#1 cause of failure in the ZJ is having some nimrod jack the rear up
under the diff. I see it all the time at a local tire shop.

--
DougW

 

"DougW" <post.replies@invalid.address> wrote:

>#1 cause of failure in the ZJ is having some nimrod jack the rear up
>under the diff. I see it all the time at a local tire shop.

Pardon the dumb question, but how does that lead to a failure?

 

"DougW" <post.replies@invalid.address> wrote:

>#1 cause of failure in the ZJ is having some nimrod jack the rear up
>under the diff. I see it all the time at a local tire shop.

Pardon the dumb question, but how does that lead to a failure?

 

"DougW" <post.replies@invalid.address> wrote:

>#1 cause of failure in the ZJ is having some nimrod jack the rear up
>under the diff. I see it all the time at a local tire shop.

Pardon the dumb question, but how does that lead to a failure?

 

Ed J. did pass the time by typing:
> "DougW" <post.replies@invalid.address> wrote:
>
>> #1 cause of failure in the ZJ is having some nimrod jack the rear up
>> under the diff. I see it all the time at a local tire shop.
>
> Pardon the dumb question, but how does that lead to a failure?

It's not a dumb question, it's a dumb design. :)

DC used thin wall tubes and only pressed them into the pumpkin with
half assed plug welds to keep the tube from rotating. Jacking from
the diff can bend the axle assembly taking the bearings and seals out
of alignment just enough to cause excessive wear. Older thick wall
steel (welded) axles didn't have that weakness.

--
DougW

 

Ed J. did pass the time by typing:
> "DougW" <post.replies@invalid.address> wrote:
>
>> #1 cause of failure in the ZJ is having some nimrod jack the rear up
>> under the diff. I see it all the time at a local tire shop.
>
> Pardon the dumb question, but how does that lead to a failure?

It's not a dumb question, it's a dumb design. :)

DC used thin wall tubes and only pressed them into the pumpkin with
half assed plug welds to keep the tube from rotating. Jacking from
the diff can bend the axle assembly taking the bearings and seals out
of alignment just enough to cause excessive wear. Older thick wall
steel (welded) axles didn't have that weakness.

--
DougW

 

Ed J. did pass the time by typing:
> "DougW" <post.replies@invalid.address> wrote:
>
>> #1 cause of failure in the ZJ is having some nimrod jack the rear up
>> under the diff. I see it all the time at a local tire shop.
>
> Pardon the dumb question, but how does that lead to a failure?

It's not a dumb question, it's a dumb design. :)

DC used thin wall tubes and only pressed them into the pumpkin with
half assed plug welds to keep the tube from rotating. Jacking from
the diff can bend the axle assembly taking the bearings and seals out
of alignment just enough to cause excessive wear. Older thick wall
steel (welded) axles didn't have that weakness.

--
DougW

 

In article <bKrPd.8495$Ps.2525@okepread06>,
DougW <post.replies@invalid.address> wrote:
>Ed J. did pass the time by typing:
>> "DougW" <post.replies@invalid.address> wrote:
>>
>>> #1 cause of failure in the ZJ is having some nimrod jack the rear up
>>> under the diff. I see it all the time at a local tire shop.
>>
>> Pardon the dumb question, but how does that lead to a failure?
>
>It's not a dumb question, it's a dumb design. :)
>
>DC used thin wall tubes and only pressed them into the pumpkin with
>half assed plug welds to keep the tube from rotating. Jacking from
>the diff can bend the axle assembly taking the bearings and seals out
>of alignment just enough to cause excessive wear. Older thick wall
>steel (welded) axles didn't have that weakness.

Which diffs are susceptible to this?

Claude