Need advise on rear differential seal

I am pretty green when it comes to rear ends so any advise is needed. My rear
differential is leaking oil from the yoke. Is there any special needs I
should be aware of before I begin? I own a1996 jeep GC Larado.

EAJ wrote:
> I am pretty green when it comes to rear ends so any advise is needed. My rear
> differential is leaking oil from the yoke. Is there any special needs I
> should be aware of before I begin? I own a1996 jeep GC Larado.
Pretty straightforward
http://tinyurl.com/kmj2a

"EAJ" <u23634@uwe> wrote in message news:6291f5fae0800@uwe...
> I am pretty green when it comes to rear ends so any advise is needed.
> My rear differential is leaking oil from the yoke. Is there any special
> needs I should be aware of before I begin? I own a1996 jeep GC
> Larado.

There are special tools for this, although these can be fabricated at home,
or substituted with commonly available tools. An impact wrench on the
pinion nut, or a hammer on the yoke, can damage the bearings or chip the
ring and pinion. I think that a "Five Star" Dodge dealer service department
did this to me once, but they covered the part on warranty anyway. That is
why you would use a pinion yoke holder when loosening the nut, and a yoke
puller when removing the yoke. Overtightening can deform the crush sleeve
and destroy the pinion bearings.

This is in principle a simple job, but there are lots of ways to screw up.

Earle

Earle Horton wrote:
>> I am pretty green when it comes to rear ends so any advise is needed.
>> My rear differential is leaking oil from the yoke. Is there any special
>> needs I should be aware of before I begin? I own a1996 jeep GC
>> Larado.
>
>There are special tools for this, although these can be fabricated at home,
>or substituted with commonly available tools. An impact wrench on the
>pinion nut, or a hammer on the yoke, can damage the bearings or chip the
>ring and pinion. I think that a "Five Star" Dodge dealer service department
>did this to me once, but they covered the part on warranty anyway. That is
>why you would use a pinion yoke holder when loosening the nut, and a yoke
>puller when removing the yoke. Overtightening can deform the crush sleeve
>and destroy the pinion bearings.

When you referr to the crush sleeve are you talking about the seal? And do I
need to remove the cover or can this all be done from the front of the
differential under the Jeep? Can you tell me how I will know when I have
thightened the nut enough. And also will it be hard to pull the the yoke
without a yoke puller?
>
>This is in principle a simple job, but there are lots of ways to screw up.

>
>Earle

--
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I will tackle rebuilding engines, but I leave diffs to the pro's.

I have even had one so called 'jeep' shop destroy my rear end's bearings
by putting on the yoke incorrectly. I had to go and spend big bucks at
a machine shop to get it fixed right and needed all new bearings by
then.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

EAJ wrote:
>
> I am pretty green when it comes to rear ends so any advise is needed. My rear
> differential is leaking oil from the yoke. Is there any special needs I
> should be aware of before I begin? I own a1996 jeep GC Larado.

Mike,

That sounds exactly like what happened to me, with a 1997 Dodge Ram Van. If
you take off the yoke with a hammer, you can destroy the bearings or the
ring and pinion. If you put the nut on too loose or too tight, the same.

Earle

"Mike Romain" > wrote in message
...
> I will tackle rebuilding engines, but I leave diffs to the pro's.
>
> I have even had one so called 'jeep' shop destroy my rear end's bearings
> by putting on the yoke incorrectly. I had to go and spend big bucks at
> a machine shop to get it fixed right and needed all new bearings by
> then.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> EAJ wrote:
> >
> > I am pretty green when it comes to rear ends so any advise is needed. My
rear
> > differential is leaking oil from the yoke. Is there any special needs I
> > should be aware of before I begin? I own a1996 jeep GC Larado.

From front to rear, this is from memory, you have the pinion nut, yoke,
seal, small bearing, crush sleeve, big bearing, and pinion gear. The crush
sleeve establishes the spacing that determines the bearing preload. If you
ruin it, you probably can't get it out from the front.

The yoke may come off in your hand without a yoke puller. Then again, maybe
not. A two-jaw puller may work for this application. You may be able to
fabricate a plate, that will facilitate use of a steering wheel puller.

You really need a manual, that describes this procedure, and the torque
values to use. Haynes may be useful, same for Chilton's. You really want a
Jeep Full Service Manual for your exact model and year.

How much do your local shops want for this job?

Earle

"EAJ via CarKB.com" <u23634@uwe> wrote in message news:6298c8dc56aed@uwe...
> Earle Horton wrote:
> >> I am pretty green when it comes to rear ends so any advise is needed.
> >> My rear differential is leaking oil from the yoke. Is there any special
> >> needs I should be aware of before I begin? I own a1996 jeep GC
> >> Larado.
> >
> >There are special tools for this, although these can be fabricated at
home,
> >or substituted with commonly available tools. An impact wrench on the
> >pinion nut, or a hammer on the yoke, can damage the bearings or chip the
> >ring and pinion. I think that a "Five Star" Dodge dealer service
department
> >did this to me once, but they covered the part on warranty anyway. That
is
> >why you would use a pinion yoke holder when loosening the nut, and a yoke
> >puller when removing the yoke. Overtightening can deform the crush
sleeve
> >and destroy the pinion bearings.
>
> When you referr to the crush sleeve are you talking about the seal? And do
I
> need to remove the cover or can this all be done from the front of the
> differential under the Jeep? Can you tell me how I will know when I have
> thightened the nut enough. And also will it be hard to pull the the yoke
> without a yoke puller?
> >
> >This is in principle a simple job, but there are lots of ways to screw
up.
>
> >
> >Earle
>
> --
> Message posted via CarKB.com
> http://www.carkb.com/Uwe/Forums.aspx/jeep-cars/200607/1