Help: Ring & Pinion

Please help:

I have a 96 Discovery, 4.0, AT, NAS.

While traveling down the highway at 25 MPH I heard and unsettling noise from
the rear. I immediately hit the brakes and threw the car in neutral as the
diff made a LOUD clunk. I put the car back in drive and heard some grinding.
Not good.

Actuated the diff lock and limped home. I did not hear any more grinding for
the rest of the ride.

I was able to get the diff off the car and low an behold the planetary gears
took a crap. After a complete inspection...

The ring appears to be in good shape, no missing or mangled teeth. The
pinion on the other hand and 5 chipped teeth, not too bad just a little at
the top where it makes contact on the inside of the ring. Again... the ring
is in good shape no teeth missing.

Questions:

Should I replace the pinion? I can see if it was worse, but... I don't want
to be in this predicament later.

Locker, LSD or stock? I am a moderate off roader and it only makes sense to
upgrade to a locker at this point. I am to understand that the Detroit
locker is far stronger than stock. I have a LSD in the front already with no
problems.

Any suggestions?

Thanks.

On Mon, 16 May 2005 01:27:08 GMT, "Jack Kerouac"
<[email protected]> made me spill my meths when he wrote:

>Any suggestions?

I would have thought ,if you can budget for it, replacing the bits you
feel may be suspect now, especially if you are going down the route of
lockers etc. You'd be pretty ****ed to find yourself on your knees in
mud or somewhere rocky later on

You could buy my RAV4 instead....


--

Wayne Davies, Harrogate 07989 556213

Just another point of view...
www.4x4prejudice.org

<[email protected]> wrote in message
news:[email protected]...
> On Mon, 16 May 2005 01:27:08 GMT, "Jack Kerouac"
> <[email protected]> made me spill my meths when he wrote:
>
> >Any suggestions?
>
> I would have thought ,if you can budget for it, replacing the bits you
> feel may be suspect now, especially if you are going down the route of
> lockers etc. You'd be pretty ****ed to find yourself on your knees in
> mud or somewhere rocky later on
>
> You could buy my RAV4 instead....
>
>
> --
>
> Wayne Davies, Harrogate 07989 556213
>
> Just another point of view...
> www.4x4prejudice.org

No thanks.

"Jack" <[email protected]> wrote in message
news:Ko_ie.10576$Y36.2221@trndny05...
>
> <[email protected]> wrote in message
> news:[email protected]...
>> On Mon, 16 May 2005 01:27:08 GMT, "Jack Kerouac"
>> <[email protected]> made me spill my meths when he wrote:
>>
>> >Any suggestions?
>>
>> I would have thought ,if you can budget for it, replacing the bits you
>> feel may be suspect now, especially if you are going down the route of
>> lockers etc. You'd be pretty ****ed to find yourself on your knees in
>> mud or somewhere rocky later on
>>
>> You could buy my RAV4 instead....
>>
>>
>> --
>>
>> Wayne Davies, Harrogate 07989 556213
>>
>> Just another point of view...
>> www.4x4prejudice.org
>
> No thanks.

FWIW, I would replace both the ring and pinion, maybe even just find a good
second hand diff?? If you leave something in there that isn't perfect, you
just know it'll come back and bite you - when you least expect or need it.
Wayne, O.T., but ever tried doing a clutch on a rav? Front suspension
remove, steering rack remove, drop engine and box and split on the deck! Not
a nice job.
Badger.

On Thu, 19 May 2005 11:40:37 +0000 (UTC), "Badger"
<[email protected]> made me spill my meths when
he wrote:

>Wayne, O.T., but ever tried doing a clutch on a rav? Front suspension
>remove, steering rack remove, drop engine and box and split on the deck! Not
>a nice job.

Printed out and left on pillow. Hmm, might leave it for breakfast
instead...

<goes and hides knives from kitchen>
--

Wayne Davies, Harrogate 07989 556213

Just another point of view...
www.4x4prejudice.org

"Badger" <[email protected]> wrote in message
news:[email protected]...
>
> "Jack" <[email protected]> wrote in message
> news:Ko_ie.10576$Y36.2221@trndny05...
> >
> > <[email protected]> wrote in message
> > news:[email protected]...
> >> On Mon, 16 May 2005 01:27:08 GMT, "Jack Kerouac"
> >> <[email protected]> made me spill my meths when he wrote:
> >>
> >> >Any suggestions?
> >>
> >> I would have thought ,if you can budget for it, replacing the bits you
> >> feel may be suspect now, especially if you are going down the route of
> >> lockers etc. You'd be pretty ****ed to find yourself on your knees in
> >> mud or somewhere rocky later on
> >>
> >> You could buy my RAV4 instead....
> >>
> >>
> >> --
> >>
> >> Wayne Davies, Harrogate 07989 556213
> >>
> >> Just another point of view...
> >> www.4x4prejudice.org
> >
> > No thanks.
>
> FWIW, I would replace both the ring and pinion, maybe even just find a
good
> second hand diff?? If you leave something in there that isn't perfect, you
> just know it'll come back and bite you - when you least expect or need it.
> Wayne, O.T., but ever tried doing a clutch on a rav? Front suspension
> remove, steering rack remove, drop engine and box and split on the deck!
Not
> a nice job.

did one on a diesel and a petrol rav4 it was a swine but I left the engine
in and just took the box out.

"Angus McCoatup©" <[email protected]> wrote in message
news:[email protected]...
>
> "Badger" <[email protected]> wrote in message
> news:[email protected]...
>>
>> "Jack" <[email protected]> wrote in message
>> news:Ko_ie.10576$Y36.2221@trndny05...
>> >
>> > <[email protected]> wrote in message
>> > news:[email protected]...
>> >> On Mon, 16 May 2005 01:27:08 GMT, "Jack Kerouac"
>> >> <[email protected]> made me spill my meths when he wrote:
>> >>
>> >> >Any suggestions?
>> >>
>> >> I would have thought ,if you can budget for it, replacing the bits you
>> >> feel may be suspect now, especially if you are going down the route of
>> >> lockers etc. You'd be pretty ****ed to find yourself on your knees in
>> >> mud or somewhere rocky later on
>> >>
>> >> You could buy my RAV4 instead....
>> >>
>> >>
>> >> --
>> >>
>> >> Wayne Davies, Harrogate 07989 556213
>> >>
>> >> Just another point of view...
>> >> www.4x4prejudice.org
>> >
>> > No thanks.
>>
>> FWIW, I would replace both the ring and pinion, maybe even just find a
> good
>> second hand diff?? If you leave something in there that isn't perfect,
>> you
>> just know it'll come back and bite you - when you least expect or need
>> it.
>> Wayne, O.T., but ever tried doing a clutch on a rav? Front suspension
>> remove, steering rack remove, drop engine and box and split on the deck!
> Not
>> a nice job.
>
> did one on a diesel and a petrol rav4 it was a swine but I left the engine
> in and just took the box out.

How did you do the petrol one? My mate asked me to give him a hand in his
garage, and the gearbox just physically couldn't be separated and removed -
there just wasn't anywhere near enough clearance, hence the dropping of the
crossmember/suspension etc after a phone call to a friend of his that had
previously worked for toymotor. I s'pose there could be differences for
different petrol engines, are there many in the range? This one was a 4-cyl.
Badger.

"Badger" <[email protected]> wrote in message
news:[email protected]...
>
> "Angus McCoatup©" <[email protected]> wrote in message
> news:[email protected]...
> >
> > "Badger" <[email protected]> wrote in message
> > news:[email protected]...
> >>
> >> "Jack" <[email protected]> wrote in message
> >> news:Ko_ie.10576$Y36.2221@trndny05...
> >> >
> >> > <[email protected]> wrote in message
> >> > news:[email protected]...
> >> >> On Mon, 16 May 2005 01:27:08 GMT, "Jack Kerouac"
> >> >> <[email protected]> made me spill my meths when he wrote:
> >> >>
> >> >> >Any suggestions?
> >> >>
> >> >> I would have thought ,if you can budget for it, replacing the bits
you
> >> >> feel may be suspect now, especially if you are going down the route
of
> >> >> lockers etc. You'd be pretty ****ed to find yourself on your knees
in
> >> >> mud or somewhere rocky later on
> >> >>
> >> >> You could buy my RAV4 instead....
> >> >>
> >> >>
> >> >> --
> >> >>
> >> >> Wayne Davies, Harrogate 07989 556213
> >> >>
> >> >> Just another point of view...
> >> >> www.4x4prejudice.org
> >> >
> >> > No thanks.
> >>
> >> FWIW, I would replace both the ring and pinion, maybe even just find a
> > good
> >> second hand diff?? If you leave something in there that isn't perfect,
> >> you
> >> just know it'll come back and bite you - when you least expect or need
> >> it.
> >> Wayne, O.T., but ever tried doing a clutch on a rav? Front suspension
> >> remove, steering rack remove, drop engine and box and split on the
deck!
> > Not
> >> a nice job.
> >
> > did one on a diesel and a petrol rav4 it was a swine but I left the
engine
> > in and just took the box out.
>
> How did you do the petrol one? My mate asked me to give him a hand in his
> garage, and the gearbox just physically couldn't be separated and
removed -
> there just wasn't anywhere near enough clearance, hence the dropping of
the
> crossmember/suspension etc after a phone call to a friend of his that had
> previously worked for toymotor. I s'pose there could be differences for
> different petrol engines, are there many in the range? This one was a
4-cyl.

it was last year so memory a bit rusty.
took subframe off with bottom arms, driveshafts out left everything else in
car IIRC I used a cradle to hold the engine in place while I undid all the
bolts holding the box to the engine.
I seem to remember the diesel being easier than the petrol.
I think the diesel was a 02 plate.

"Angus McCoatup©" <[email protected]> wrote in message
news:[email protected]...

>> >
>> > did one on a diesel and a petrol rav4 it was a swine but I left the
> engine
>> > in and just took the box out.
>>
>> How did you do the petrol one? My mate asked me to give him a hand in his
>> garage, and the gearbox just physically couldn't be separated and
> removed -
>> there just wasn't anywhere near enough clearance, hence the dropping of
> the
>> crossmember/suspension etc after a phone call to a friend of his that had
>> previously worked for toymotor. I s'pose there could be differences for
>> different petrol engines, are there many in the range? This one was a
> 4-cyl.
>
> it was last year so memory a bit rusty.
> took subframe off with bottom arms, driveshafts out left everything else
> in
> car IIRC I used a cradle to hold the engine in place while I undid all the
> bolts holding the box to the engine.
> I seem to remember the diesel being easier than the petrol.
> I think the diesel was a 02 plate.

The one I helped with was an older model, so I suppose they might have
re-engineered maybe the shaping of the inner wing slightly to allow the box
to come off in situ? The toymota man we spoke to said you could also pull it
out the top, but you had to take just about all the engine ancilliaries off
to do so! Must admit, if I had the driveshafts and subframe/arms off, I'd
just have dropped the whole thing out myself rather than work in the
confines of the engine bay to split the box off.
Methinks I'll be sticking to Landrover products given choice!
Badger.