Transfer Box Leaks

Lutzgaterr

Well-known member
Apr 23, 2004
578
0
LUTZ, Florida
I have posted on other boards, so far no info as of yet, so here it goes.
I have noticed as of late the need to add oil to transfer case, about 1/4-1/2 pt for every 3K miles.
Called my local mechanic. He said typically it is the intermediate shaft seal. That is the input from ****** to t-case. WOW, lots of $$ to repair, $785.
Question is, can anyone confirm that this particular seal is usually the culprit?
Funny to me, it is splash lubricated, above oil line, but see no signs of leak other than the need to add oil during regular maintenance tasks.

If I had a T-case adapter plate, I would have already addressed the issue.

Thanks to all in advance.
 
M

Mosi

Guest
Just had my input shaft seal replaced... not sure if it's the same thing or not but I was 2 weeks out of the factory warranty when I noticed it. I do have an extended warranty but I had to pick up the $100 deductible. My rear main was also bad so they replaced that as well. $1800 total for the repairs (warranty picked up $1600)! In the last 3k miles, I have had the oil pan seal, T-case input shaft seal, rear main seal, and head gaskets replaced. Not good for a truck with only 44k miles on it. But DAMN I still love the beast!
 

Lutzgaterr

Well-known member
Apr 23, 2004
578
0
LUTZ, Florida
I have found the culprit of my leak.
It is the bottom face-plate.
I cleaned the entire T-case area with engine cleaner, stayed out of the mud for a couple of weeks, hardest part for sure, and crawled under to inspect last night.
Easily spotted the source. Thank goodness it's an easy fix!!!

Now, I am not sure if I am being paranoid or not, but my T-case is really staring to whine between 30-45 MPH. Since most of my road-time is spent within these mph ranges, wondering if that is why the T-case is most vocal.

So, I drained and refilled with Mobil-1, BTW, I have use Mobil-1 for the last 40K miles.
T-case has never been low on fluid since I have always kept my eye on it.

Got any suggestions? I am hearing the last sounds of life from my T-case?????
Please advise.