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4l80e Seal Part Number

spy0068

By spy0068
in Ask A GM Technician

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spy0068 Enthusiast

spy0068

Posted
Posted

Can someone that has the capabilities please look up the GM part number for the rear case seal on the 4l80e transmission.... It is the seal on the output shaft on the back of the trans where the transfer case bolts on.... There is a snap ring that hold it in place.... The truck is a 03 2500hd 4x4...... I have to try to find one on Monday and it would be much easier with the GM part number..... Have been searching all afternoon online for a GM parts list but cannot find one anywhere. Just aftermarket parts list.

Thanks

spy0068 Enthusiast

spy0068

Posted
  • Author
Posted

I had to drop my transfer case to repair it and there was about a half a quart to tranny fuild between the two..... The seal had a place between the snap ring gap that the lip of the seal was pushed out so I am replacing it...... That seal is all I am waithing for to get to back together....

 

 

ok,i'll ask,

 

who diag'd that seal ? and why ?

gmtech4 Senior Enthusiast

gmtech4

Posted
Posted

change the t case input seal also ,its all cracked and the cause of the leak to the adaptor,

 

go see a dedicated tranny guy at a dealer and ask if he has the orange rear seal(the one you're lookin for) handy ,he'll give it to ya .

 

worth a try,i had tones layin around when i was a tranny guy ,

 

 

there is always SOME oil between the 2 but when it pours out its the t case seal,i ve done a million of them,

 

have fun ,get a gasket for the assembly (t case to adaptor)

 

be carefull with removing the tcase seal and not nick the shaft or outer mount area with a seal remover

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