Different seals on a 9" axle - 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
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 02-15-2010, 08:13 PM
Barn Owl's Avatar
Registered User
 
Last photo:
Join Date: Aug 2009
Location: San Diego
Age: 46
Posts: 58
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Different seals on a 9" axle

I have a Lincoln 9" with disc brakes, 28 spline axle with the big bearing at the end of the axle tube. I purchased new bearings and seals for the axles and removed the old ones, and getting ready to install the new bearings and seals. the literature that came with the new bearings shows a small seal inboard of the pressed on collar. In the photo it is #6. I do not remember this being on the axle when I took it all apart about 6 months ago. Got this axle off of Craig's list and have been rebuilding it, did not know if it was missing a part. I know that there are large and small bearing models. Is this inter seal something I need to find?


    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 02-16-2010, 05:15 AM
S10 Racer's Avatar
http://www.warsprints.com
 

Last journal entry: W.A.R. (Wingless Auto Racing) Sprint Car Racing
Last photo:
Join Date: Nov 2007
Location: At The Dirt Tracks
Age: 55
Posts: 1,939
Wiki Edits: 0

Thanks: 4
Thanked 74 Times in 66 Posts
I can't tell from the photo, is it showing a seal on both sides of the bearing? I have a 9" Ford rearend in our S10 drag truck and it is the big bearing type with the seal inbound but the bearing is a sealed type requiring no rearend grease as lube.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 02-16-2010, 10:05 AM
31 five window
 

Last journal entry: grill and rear end
Last photo:
Join Date: Oct 2007
Location: louisiana
Age: 57
Posts: 1,579
Wiki Edits: 0

Thanks: 1
Thanked 16 Times in 16 Posts
Yes #6 is an inner seal. It was probably left out because some people believe that with a sealed axle bearing it is not needed. Make sure your axle bearings are the sealed type and install the seals. That is the proper way to assemble a 9" Ford.There are no outer seals,That is the bearing retainer in the picture.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 02-16-2010, 10:36 AM
bentwings's Avatar
bentwings
 
Last photo:
Join Date: May 2002
Location: St.Paul, Minn
Age: 72
Posts: 1,798
Wiki Edits: 0

Thanks: 0
Thanked 16 Times in 15 Posts
The item that has the 'star' balloon is actually a lip seal. It is used with the tapered roller as shown. This seal is often damaged when installed. Yes, the inner seal is really necessary even with sealed bearings as the gear lube will travel down the tapered axels and gather at the bearings. It will eventually leak past the outer diameter of the ball bearings even with o-ring bearings. You also must have a vent on the housing or you can guarantee leaks.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 02-16-2010, 11:48 AM
big gear head's Avatar
High Performance Rear Ends
 
Last photo:
Join Date: Nov 2009
Location: Central City, KY
Posts: 2,162
Wiki Edits: 0

Thanks: 15
Thanked 522 Times in 439 Posts
If you have the sealed ball bearings then you need the inner seal and no outer seal. If you have the tapered roller bearings then you will have a seal on the outside of the bearing. If you use the inner seal with the tapered roller bearing the bearings will go out because they need oil from the rear end. The sealed ball bearings are packed with grease and need no oil from the rear end.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 02-16-2010, 01:52 PM
prostreet6t9's Avatar
Differential/Driveline
 
Last photo:
Join Date: Sep 2008
Location: oregon
Age: 51
Posts: 1,761
Wiki Edits: 0

Thanks: 9
Thanked 45 Times in 42 Posts
Did your old Brg have the seal behind the Brg on the axle? If so, the New Brg's you bought should be part# A20 or Set20. That Brg assy uses the seal behind the axle Brg and does not use a seal in the housing.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 02-16-2010, 05:26 PM
Barn Owl's Avatar
Registered User
 
Last photo:
Join Date: Aug 2009
Location: San Diego
Age: 46
Posts: 58
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Thanks for the replies. Seems like there are alot of opinions on the subject.
I am not sure if the seals were there or not since I just pulled the axles and took the rest of it to the shop to have it straightened and regeared. The literature says that the old seal will usually be stuck inside the housing, but from what I remember they were not there. On the drivers side there was quite a leak when I bought it, which started me thinking maybe someone forgot to put one in.

I do have the tapered roller berings with the seal that is outboard of the bearing, and it makes sence that the bearing would need lubrication from the oil in the housing. The collar that I removed and the new one that came with the new bearing are quite large and it does not appear that an inboard seal would fit on the milled portion of the axle before it starts to taper.

Housing is already vented.
Mike
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 02-16-2010, 06:02 PM
prostreet6t9's Avatar
Differential/Driveline
 
Last photo:
Join Date: Sep 2008
Location: oregon
Age: 51
Posts: 1,761
Wiki Edits: 0

Thanks: 9
Thanked 45 Times in 42 Posts
Quote:
Originally Posted by Barn Owl
Thanks for the replies. Seems like there are alot of opinions on the subject.
I am not sure if the seals were there or not since I just pulled the axles and took the rest of it to the shop to have it straightened and regeared. The literature says that the old seal will usually be stuck inside the housing, but from what I remember they were not there. On the drivers side there was quite a leak when I bought it, which started me thinking maybe someone forgot to put one in.

I do have the tapered roller berings with the seal that is outboard of the bearing, and it makes sence that the bearing would need lubrication from the oil in the housing. The collar that I removed and the new one that came with the new bearing are quite large and it does not appear that an inboard seal would fit on the milled portion of the axle before it starts to taper.

Housing is already vented.
Mike

As BGH stated Tapered Brg's "Do Not" use the inner seal in the housing. You're correct on that Brg needing diff lube to lube it. So dont try and install one.

Most of the housing ends that use that A20 style Brg dont have a spot for the inner seal to press in and most of the axle's for that Brg don't have a machined spot for the seal to ride.
Reply With Quote Quick reply to this message

Recent Transmission - Rearend posts with photos

Quick Reply
Message:
Options

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.




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
Ford 9" axle Seals fredbaker Transmission - Rearend 2 11-07-2009 05:56 PM
How to change 9inch axle seals? "70" Cougar Transmission - Rearend 5 03-14-2006 11:11 PM
Changeing 9 inch axle seals? "70" Cougar Transmission - Rearend 2 03-13-2006 11:05 AM
9" Ford Axle seals? kevkoracing Suspension - Brakes - Steering 12 08-20-2003 01:24 PM
9" rear - oil seals? Limey Simon Transmission - Rearend 15 12-03-2002 01:45 PM


All times are GMT -6. The time now is 11:18 AM.


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.