Transfer Case Gasket Leak?

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14RamHemiSport

14RamHemiSport

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Are you guys getting the front differential mixed up with the output on the transfer case? I just did the pinion seal on my front differential, and it has a u-joint in that spot. Mine is an 08, but I would think they are the same. Mine didn't look as bad as the one posted, and I changed mine.

I have both mentioned. I have a leak from the front output shaft seal on the TC and the drivers side axle coming out of the front diff is leaking as well. here is the front ds axle leak:
IMG_20191008_181640.jpg
pic should be rotated 90 deg counter clock wise. diff is on bottom of pic, axle is from flange going up.

i will say this: i have no idea how long it has been leaking. ive owned this for less than 30 days. i do know its slow. no drips in driveway etc.
 

wjburken

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i also noticed the seal (i assume its a seal) on the drivers side axle where it comes out of the front diff is leaking too. common for these seals to go under 90k miles?

Are you guys getting the front differential mixed up with the output on the transfer case? I just did the pinion seal on my front differential, and it has a u-joint in that spot. Mine is an 08, but I would think they are the same. Mine didn't look as bad as the one posted, and I changed mine.

Not mixed up, just shifted gears in conversation.
 

wjburken

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Thank you all for all the input. Funny you mention having to drop the oil pan. I believe my gasket is leaking as well. Again, nothing extreme, but its wet up in there. Im taking the yukon to my mechanic to look these issues over tomorrow. Provide me with a quote to fix them. I guess the good thing in them all is that as long as i keep fluid in the TC and front diff (and oil in the motor), i can just monitor this and save up at the same time. When i mentioned the front diff seal first thing my mechanic said was "if they are not leaking then they are bone dry"...more concern that way.

I think you’re correct that there is no need to do anything more than monitor fluid levels at this time.
 

petethepug

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That’s all the stuff that gets addressed in the 100k major service when fluids are replaced in the entire driveline.

At 101k on our 08 the pan, rear main & tc seals got replaced. One motor mount and the radiator were replaced too. Our Denali was purchased at 96k.

Didn’t look, did you mention ur milage?


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14RamHemiSport

14RamHemiSport

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That’s all the stuff that gets addressed in the 100k major service when fluids are replaced in the entire driveline.

At 101k on our 08 the pan, rear main & tc seals got replaced. One motor mount and the radiator were replaced too. Our Denali was purchased at 96k.

Didn’t look, did you mention ur milage?


Sent from my iPhone using Tapatalk

90k
 
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14RamHemiSport

14RamHemiSport

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Make sure that this little bit of fluid didn't from above, the power steering or engine oil cooler lines if you have them.

i just dropped it off at the shopped to get everything looked over. will the oil cooler make any noises if dry?
 

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