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Oil seal leaking on 1999 gmc half ton 4w/d on front of transfere case do i need special tools or can I drop drive line and replace seal

I have a oil leak from the transfere case . I think it is the seal where the shaft comes out for the front wheel drive. can I drop the drive line and just pull the seal out or do I need special tools

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Billbohman: Unless GMC has had some change I am not aware of and that has not been published in service manuals for the repair of these units, the procedures are the same as any seal replacement and require no special tool. There are some universal seal installation tools which I would venture the majority of techs don't have because they substitute other tools in their place most of the time. Most techs will have a special tool designed from removing seals. However, the seal can be removed without it.
Just use a little common sense when removing a seal. Don't damage the casing.
Good Luck.

Posted on May 10, 2009

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