2002 4L60E 4wd Suburban Leak at ectension tube - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum

Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend
User Name
lost password?   |   register now

LinkBack Thread Tools
  #1 (permalink)  
Old 06-02-2012, 12:55 AM
Registered User
Join Date: Jun 2012
Posts: 1
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
2002 4L60E 4wd Suburban Leak at ectension tube

I have a put a rebuilt 4l60e trans in my 2002 suburban. I have had a leAK at the extension tube between the transfer case and the extension tube between the trans.
I just replaced the gasket and I still get a leak there.

I am under the impression from reading elsewhere that the trans has no rear seal on the 4wd setup the extension tube is the seal.

when looking at the rear of the trans without the extension tube on there is no rear seal.
My question is should there be something there to seal the rear of the trans or is the extension tube the seal.?

Any thoughts as to why I have a leak. I did resurface the gasket area with a abrasive disk to remove the leftover bits of gasket,

I'm stumped.

Thanks for your thoughts in advance
Cincinnati OH

Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 06-02-2012, 03:35 PM
Crosley's Avatar
Global Moderator
Last wiki edit: T-350 rebuild tech
Last journal entry: 1962 Morris Minor 1000
Last photo:
Join Date: Nov 2002
Location: ... USA
Posts: 9,244
Wiki Edits: 1659

Thanks: 945
Thanked 289 Times in 255 Posts
the rear of the 4l60e case is open in a 4x4 application. The t-case is sealed at the front.

Often these adapters become warped and not flat where the gasket needs to seal. You can unbolt the adapter from t he back of the 4l60e trans. Flat sand that area on something large enough to bring the surface back to level.

A square cut O-ring seals up the t-case adapter to the 4l60e case
Dont worry how old you are... it is the mileage on your body that adds up.
Reply With Quote Quick reply to this message

Recent Transmission - Rearend posts with photos

Quick Reply

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
2002 4L60E rebuild with some issues...... Sierra02 Transmission - Rearend 8 12-21-2011 02:39 PM
2wd 4l60e Vs 4wd Rodknocker47 Transmission - Rearend 1 10-27-2011 11:08 PM
2002 blazer 4l60e problems lp14255 Transmission - Rearend 11 12-27-2008 12:26 PM
4l60e 4wd to 2wd pickjays Transmission - Rearend 2 11-10-2006 08:11 PM
4l60, Or 4l60e 1994 Gmc 4wd buddy powell Transmission - Rearend 4 10-14-2004 06:16 AM

All times are GMT -6. The time now is 07:09 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.