Uh-Oh, there's a hole in my transfer case!

[paoutdoorsman]

I recently bought an '02 Duramax crew cab. I've only put 180 miles on it so far. After a 40 mile drive the other day I found I had what appeared to be ATF dripping off the rear and coating the underside of the truck from the transfer case back. The tranny is completely dry. Took it to the shop and they diagnosed this as a pin hole in the transfer case housing caused by something internally that is factory mounted to the housing which had broken or come loose and basically jiggled against the case until it made a hole so small that it takes 30+ miles to get the fluid warm enough to start to leak. My 2 15 mile test drives did not uncover this problem.

They recommend replacing the case half, which comes with a new one of whatever broke loose in the old case. Anyone else have a similar issue??

Dana

[mattb5150]

Lots of us who had 01 & 02's. Do a search.

Matt

[JohnC]

thread on transfer case leaks (http://www.thedieselpageforums.com/tdpforum/showthread.php?t=23902)

[paoutdoorsman]

Got the truck back from the transmission shop yesterday. They installed a new case half, transfer seal kit, and 3 quarts of Auto Trek transfer fluid. Here's the breakdown for the repair:

Rear transfer case half: $259.99
Transfer seal kit: $69.99
3 Qrts. Auto Trek $8.88/ea $26.64
5 hrs. labor $59.68/hr $298.40
Shop Supplies $19.65
Tax $40.48
TOTAL $715.15

Jim, I noticed your note in another thread that these cases should actually have ATF in them. Should I get the Auto Trek out of the asap, or did I just spend more than I had to?

I've only noticed one other member saying GM paid 1/2 the bill. Perhaps I should have had this job done at the dealer to try to get some coverage. Who would I contact to make an effort to get partial coverage?

Dana

[DA BIG ONE]

While I have the NP246 (replaced w/new one sometime ago) I use synthetic fluids as recommended by the distributers of NP and other t-cases.

http://www.transfercases.com/

Then there are t-case parts to be found here.
http://www.drivetrain.com/transfercasesparts.html#New%20Process%20Model%2024 6