Rear axle seals keep going bad on '02 2500HD

Anyone know of known issues w/ the '02 2500HD 2WD rear axle seals? My Dad is
getting ready to have a third seal replaced in 91K miles before the warranty
expires. The first went around 50K miles, the second around 62K miles and
now the third! I had one go on my first '02 2500HD inside of 15K miles, but
have been fortunate on my current 2500HD 4WD at 41K miles w/ no issues with
'em thus far.

What is required in pulling the 2WD axle? Does the diff have to be opened
and a lock ring pulled or do you just remove the bolts from the plate and
pull it? This obviously for future knowledge once the warranty expires in a
few weeks.


Thanks,
Kevin

On Sat, 30 Dec 2006 19:27:36 -0500, "Kevin"
wrote:

>Anyone know of known issues w/ the '02 2500HD 2WD rear axle seals? My Dad is
>getting ready to have a third seal replaced in 91K miles before the warranty
>expires. The first went around 50K miles, the second around 62K miles and
>now the third! I had one go on my first '02 2500HD inside of 15K miles, but
>have been fortunate on my current 2500HD 4WD at 41K miles w/ no issues with
>'em thus far.
>
First thing I would check for is a plugged vent line on diff because
they generally have a very long life unless they are overheated realy
bad a lot for excessive torque loads. I have had seal not leak on 20
year old axles. Too heavy a lube in realy cold weather can shorten
their life too.

>What is required in pulling the 2WD axle? Does the diff have to be opened
>and a lock ring pulled or do you just remove the bolts from the plate and
>pull it? This obviously for future knowledge once the warranty expires in a
>few weeks.
>
>
>Thanks,

It is a full floater (whether it is a 10.5 or 11.5 depending on
engine) they still both just pull right out without even jacking
vehicle up.
>Kevin
>
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