Transfer case leak

[Ponchonutty]

Well. Finally found the source of my leak. I have the dreaded pin hole leak at the transfer case. Appears as if JB weld is the quick short term answer but I'm gonna have to tear into it soon. Anyone tackle this yet?

 

[SLCHOE]

Yes.

 

[Jetfumes]

I thought mine had the pinhole but turned out being a transfer case rear seal, cost $40 and no longer leaking. Are you sure you have the pinhole?

 

[Ponchonutty]

Almost 100%. I crawled under there quickly and both seals were dry but all around the bottom half of th case where the bolts are was very wet. I'm gonna get under it again to double check. Here's 2 pics of my old buggy

 

[omega123]

i love those wheels what are they off of?

 

[t.stimpson]

can this pin hole leak happen on the AWD on a 2009 denali? My brothers suburban had this and I was told they are different transfer cases and that the AWD this doesnt happen on.

 

[Ponchonutty]

Thx. Wheels are off a 2015 Silverado. The leak looks more like it's coming from the rear output shaft. I can see the spot where the holes can happen looks ok

 

[VikingTrad3r]

thank you for posting that video. that looks really easy. ill check mine for wear and put in the protector plate.

 

[electro]

That video ^^ up there pretty much sums it up.

Take drive shafts out, take transfer case out. Open case, install plate, close case. Reinstall case. Fill with fresh fluid and put drive shafts back in.

Materials, Plate thingy mabobby, transfer case to transmission gasket / gasket maker, auto track fluid.

Something about the coating on the bolts is important (the ones that hold the case half together?) They are coating to resist reacting with cast magnesium transfer case?

I did this once, was easy I think! I need to do it again to a different truck now.

 

[Ponchonutty]

Well I changed th output shaft but it is still leaking. Looks like I will have to replace the case