Hot Rod Forum : Hotrodders Bulletin Board - Reply to Topic
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> output shaft seal for Th-400
User Name
Password
lost password?   |   register now

Thread: output shaft seal for Th-400 Reply to Thread
Title:
  
Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :

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:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

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.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
12-18-2010 03:50 AM
SSedan64
Quote:
Originally Posted by Titanium
i will post the numbers and the diameter of the seal within the next couple hours. its for sure a 400 judging from the pan shape and length of the case.
Check the Spline count on the Output Shaft. Is it 32-spline or 27-spline?
TH400 has 32-spline count, TH375 has smaller TH350 size 27-spline count and a TH400 pan shape, the bushing is smaller on the TH375. It will have a 9-1/2" tailhousing also.

"" A medium duty version of the TH-400. On the underside of the trans, right where the tail housing bolts up, the letters "TH-375" can usually be found cast into the trans housing.""


From here:
http://www.442.com/oldsfaq/oftrn.htm...n%20Comparison

http://www.442.com/oldsfaq/oftrn.htm...Identification
12-18-2010 03:19 AM
SSedan64
Quote:
Originally Posted by matts37chev
what are the other ones in the numbered pic?
Look about 3/4 way down the page here>> http://www.maliburacing.com/auto_tranny_id.htm
12-17-2010 08:58 PM
matts37chev what are the other ones in the numbered pic?
12-17-2010 03:15 PM
sqzbox
tranny ID

That would be #4 right?
12-17-2010 02:56 PM
Titanium i will post the numbers and the diameter of the seal within the next couple hours. its for sure a 400 judging from the pan shape and length of the case.
12-17-2010 01:38 PM
prostreet6t9 Can you see any numbers off the old seal? If not,measure the OD of the old seal and then measure the seal surface of your slip yoke and post them.
12-17-2010 01:30 PM
prostreet6t9 You sure its a Th-400? The Modulator is on the front RH side close to where the filler tube goes into the case?
12-17-2010 01:23 PM
prostreet6t9 Is the OD or ID wrong ?
12-17-2010 01:23 PM
Titanium i've tried both of those seals...thats why i'm confused.
12-17-2010 01:20 PM
prostreet6t9 2 different seal can be in your 400. If your slip yoke has a 1.875 seal surface use a National# 9449. If the seal surface is 1.687 use National# 7038SA.
12-17-2010 01:09 PM
Titanium
output shaft seal for Th-400

Hey guys i'm having trouble and i am very confused about this transmission. I cannot find a rear output shaft seal for this 400. the transmission is out of an 86 c10. i've gone to napa, o'reilly and autozone and every rear seal they give me is just barely to big to fit. Whats going on here? I know for a fact this transmission is a 400. Are there any other transmissions that have tail shaft housings that are interchangable with the 400?

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


All times are GMT -6. The time now is 09:53 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.