Register

If this is your first visit, please click the Sign Up now button to begin the process of creating your account so you can begin posting on our forums! The Sign Up process will only take up about a minute of two of your time.

Follow us on Facebook Follow us on Twitter
Page 1 of 5 123 ... LastLast
Results 1 to 10 of 47
  1. #1
    Registered articfriends's Avatar
    My Boats:
    272 baja-slightly modified
    Join Date
    Jun 2004
    Location
    Frankenmuth
    Posts
    5,016

    01-07 duramax junk transfer case design

    Last week a customer brought a 04 duramax into my shop for noise coming from the T-case. We pulled the drain plug,no oil. Got approval to rxr it,was completely destroyed from lack of lube. It had a very small hole rubbed thru the bottom from the ears on the oil pump wearing there way thru the rear case half,this let all the oil leak out then it ran DRY!!!! Did some internet reaerch as this is the first one I have seen with this problem. Found a thread on the diesel page,the design of the 263xhd transfer case has 4 or 5 very thin ears of the oil pump riding on the magnesium that the rear half is made from,there is a spring steel clip that falls apart then allows the pump to wear thru the case. Once this happens the oil leaks completely out in less than a hundred miles. There were over 15,000 views on the thread,this happens on all of the 4wd duramxes sooner or later,usually between 80,000 to 150,000 miles,this one had 104,000 on it. Gm won't acknowledge there is a problem,still uses the same design today. The truck had never seen hard off road use and just normal 4wd use in the winter. Dealer gets1500$ wholesale for re-built t-case plus 300$ core that is non-refundable if it has been ran dry or has a hole in the case. I found a soucre for brand new ones for what dealer sells re-manned ones for,customer thinks hes going to find a used one,I made a few calls and was told they sell the t-cases out of wrecked ones before they even get unloaded from the wrecker at the junkyard. There is a guy in hollad,Mi who is making a pump upgrade to prevent this from happening. I have had 3 duramaxes with no problems like this but they have all been sold by 50,000 miles. This is just a heads up for anyone who has a 4wd with high miles,its alot cheaper to upgrade the pump and replace the rear 1/2 BEFORE it gets a hole in it and loses all the oil,I'll post a link if anyone needs more info,Smitty

  2. #2
    VIP Member VIP Member Quinlan's Avatar
    My Boats:
    02 38 T/S GUN SMITH POWER 43 Wellcraft Portifino
    Join Date
    Jul 2003
    Location
    Tulsa, GLOC
    Posts
    2,381
    Same thing happened on my 01 2500hd w 8100. Around 60k miles I noticed oil on the underside of truck and on my boat and trailer. Dealer replaced. I had extended warranty. Luckie me. was not a cheap fix. Then noticed again about 120K. Sold truck. And bought a new Duramax! w warranty again. So lets see some info on the upgrade. Thanks Quinlan

  3. #3
    Registered
    My Boats:
    '77 Hornet II
    Join Date
    Aug 2006
    Location
    IAD/FLL
    Posts
    2,090
    How can I tell which transfer case I have? I've got an '01 Yukon XL 2500 with the 8.1L/496. Guess it's time to check the fluid level and do a flush & fill.

  4. #4
    T-Mone Platinum Member T-Mone's Avatar
    My Boats:
    2003 Pantera 24-Sold
    Join Date
    Sep 2002
    Location
    Brookfield CT.
    Posts
    330
    Yeah i had the same problem with mine at 120,000, I just replaced the rear case half. Caught it before I lost all the oil and destroyed everything.

  5. #5
    Charter Member#1545 Charter Member
    My Boats:
    Boating,Motorcycling,Snowmobiling
    Join Date
    Mar 2001
    Location
    Grand Junction, Co.
    Posts
    866
    One of my tranny shops is probably doing 3-5 of these t-cases a week. The oil field has been really hard on these.

    Sam

  6. #6
    Registered articfriends's Avatar
    My Boats:
    272 baja-slightly modified
    Join Date
    Jun 2004
    Location
    Frankenmuth
    Posts
    5,016
    The offending transfer cases are new venture 263xhd's,ALL duramax 4wd's,even the 07's,have them and from what I know the 8.1 vehicles have them too. The pump upgrade piece is 250$ from merchant automotive 1-866-399-7169
    http://www.dieselplace.com/forum/sho...d.php?t=125424
    I'm not posting this thread to sell this piece so please don't delete it as I am not associated with merchant automotiive in any way,I'm posting this to save fellow duramax owners from a 1500-2200$ repair bill from running their t-cases out of oil. On a low mile vehicle the pump piece could be installed before transfer case is worn thru or has much wear with common sense and average mechaic skills,on a higher mileage vehicle plan on changing the rear t-case 1/2 ( about 300-350$)when installing the pump piece,even though it hasn't worn completely thru it will still be junk. Anyone in Mi in my area that needs this done can call the number on my signature if they need a installer,Smitty
    Attached Images Attached Images

  7. #7
    Registered articfriends's Avatar
    My Boats:
    272 baja-slightly modified
    Join Date
    Jun 2004
    Location
    Frankenmuth
    Posts
    5,016
    Quote Originally Posted by handfulz28 View Post
    How can I tell which transfer case I have? I've got an '01 Yukon XL 2500 with the 8.1L/496. Guess it's time to check the fluid level and do a flush & fill.
    Wipe off the tag and find the new venture designation on the back 1/2 of the t-case,it will be something like 263xhd or 246 or similar,Smitty

  8. #8
    SORE MEMBER Platinum Member Wobble's Avatar
    My Boats:
    SeaDoo RXP & RXP-X, Stryker Equalizer 28, Eliminator Daytona Jet
    Join Date
    Apr 2004
    Location
    2950'49.74"N 95 5'17.55"W.......TEXAS
    Posts
    5,421
    Quote Originally Posted by articfriends View Post
    The offending transfer cases are new venture 263xhd's,ALL duramax 4wd's,even the 07's,have them and from what I know the 8.1 vehicles have them too. The pump upgrade piece is 250$ from merchant automotive 1-866-399-7169
    http://www.dieselplace.com/forum/sho...d.php?t=125424
    I'm not posting this thread to sell this piece so please don't delete it as I am not associated with merchant automotiive in any way,I'm posting this to save fellow duramax owners from a 1500-2200$ repair bill from running their t-cases out of oil. On a low mile vehicle the pump piece could be installed before transfer case is worn thru or has much wear with common sense and average mechaic skills,on a higher mileage vehicle plan on changing the rear t-case 1/2 ( about 300-350$)when installing the pump piece,even though it hasn't worn completely thru it will still be junk. Anyone in Mi in my area that needs this done can call the number on my signature if they need a installer,Smitty
    I wish you were closer, I wouldn't hesitate to use your services.
    Mark...........
    One boat at a time!
    http://www.youtube.com/watch?v=8a8_-iFkjcY

  9. #9
    Registered
    My Boats:
    yamaha sx190,yamaha exciter, yamaha ls2000 w c 255dc , 38sonic,38fountain ec,35outlaw,28pantera,27donzi zx ect
    Join Date
    Jun 2005
    Location
    west palm beach FL,
    Posts
    2,759
    does this have to do with the alison transmision ?

  10. #10
    SORE MEMBER Platinum Member Wobble's Avatar
    My Boats:
    SeaDoo RXP & RXP-X, Stryker Equalizer 28, Eliminator Daytona Jet
    Join Date
    Apr 2004
    Location
    2950'49.74"N 95 5'17.55"W.......TEXAS
    Posts
    5,421
    Quote Originally Posted by mikebrls View Post
    does this have to do with the alison transmision ?

    Only on the 4 x 4 models
    Mark...........
    One boat at a time!
    http://www.youtube.com/watch?v=8a8_-iFkjcY


Page 1 of 5 123 ... LastLast

Similar Threads

  1. 07' 2500 HD Transfer Case Fluid
    By turnerrd in forum Trucks, Trailers and Transportation
    Replies: 2
    Last Post: 06-28-2008, 08:46 PM
  2. Where should I seperate trans from transfer case?
    By handfulz28 in forum Trucks, Trailers and Transportation
    Replies: 2
    Last Post: 03-11-2008, 04:39 PM
  3. Chevy 2500 HD transfer case puked!
    By Biggus in forum Trucks, Trailers and Transportation
    Replies: 4
    Last Post: 11-26-2007, 12:50 AM
  4. Fuel transfer
    By lanpln in forum Outerlimits
    Replies: 3
    Last Post: 10-12-2007, 05:10 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
OSO Sponsor
OSO Advertisers


OSO Directory
All times are GMT -5. The time now is 03:07 AM.
Powered by vBulletin® Version 4.2.0
Copyright © 2014 vBulletin Solutions, Inc. All rights reserved.
Search Engine Optimization by vBSEO 3.6.1
Original Poster In Postbit provided by Original Poster In Postbit v1.0.0 (Free) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
Copyright 2011 OffShoreOnly. All rights reserved.