Ford 9" Questions... - 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 04-06-2013, 05:19 PM
S10xGN's Avatar
Gotta love a turbo!
 

Last journal entry: Body on Frame today.
Last photo:
Join Date: Aug 2004
Location: Port Neches, TX
Age: 61
Posts: 1,644
Wiki Edits: 0

Thanks: 0
Thanked 58 Times in 55 Posts
Ford 9" Questions...

Hi All,

I have a Ford 9" 4-pinion traction-lok unit that I pulled apart today. This unit was advertised as "ready to run", but while disassembling it was found to have all bolts just above finger tight. Everything inside looks good (even the clutches) except for two things. The sheetmetal spring coverplate is broken, and the outer shell of the case has a few places where the clutch tab retainer slots are machined too close to the ring gear bolt holes and you can see daylight through these spots. Is this normal? I've heard Currie makes a billet cover plate, but haven't seen it available separately and don't know if it'll even "bolt on" without additional machine work. Does anyone know for sure or have a part number?

Thanks!

Russ
Attached Thumbnails
Click image for larger version

Name:	9INTLBLCKCVR.JPG
Views:	64
Size:	52.0 KB
ID:	72959   Click image for larger version

Name:	ford 9 cover.jpg
Views:	99
Size:	121.2 KB
ID:	72960  

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 04-06-2013, 05:26 PM
big gear head's Avatar
High Performance Rear Ends
 
Last photo:
Join Date: Nov 2009
Location: Central City, KY
Posts: 2,027
Wiki Edits: 0

Thanks: 10
Thanked 398 Times in 341 Posts
I haven't seen that cover available by it's self for many years. What you have right now is a time bomb. Those covers are very well known for busting and tearing up everything inside the chunk.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 04-07-2013, 10:31 AM
S10xGN's Avatar
Gotta love a turbo!
 

Last journal entry: Body on Frame today.
Last photo:
Join Date: Aug 2004
Location: Port Neches, TX
Age: 61
Posts: 1,644
Wiki Edits: 0

Thanks: 0
Thanked 58 Times in 55 Posts
After further investigation (and a bit of luck) I found some on E-Bay from QuickPerformance. Could not find it on their web pages though... E-mailed them and was told it will fit a factory trac-lok with no additional machining!

Russ
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 04-07-2013, 04:50 PM
big gear head's Avatar
High Performance Rear Ends
 
Last photo:
Join Date: Nov 2009
Location: Central City, KY
Posts: 2,027
Wiki Edits: 0

Thanks: 10
Thanked 398 Times in 341 Posts
Be sure to get some clutch shims because you might need to reshim the clutch if the new cover is deeper.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 04-08-2013, 08:04 AM
S10xGN's Avatar
Gotta love a turbo!
 

Last journal entry: Body on Frame today.
Last photo:
Join Date: Aug 2004
Location: Port Neches, TX
Age: 61
Posts: 1,644
Wiki Edits: 0

Thanks: 0
Thanked 58 Times in 55 Posts
Quote:
Originally Posted by big gear head View Post
Be sure to get some clutch shims because you might need to reshim the clutch if the new cover is deeper.
I'll prolly try and set this one up myself, first timer. Is there a difference on those 4 little springs or are they all the same (tension wise)? What am I looking for as far as shimming the clutch pack? Do you know of a downloadable assembly manual?

Thanks!

Russ
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 04-08-2013, 08:59 AM
big gear head's Avatar
High Performance Rear Ends
 
Last photo:
Join Date: Nov 2009
Location: Central City, KY
Posts: 2,027
Wiki Edits: 0

Thanks: 10
Thanked 398 Times in 341 Posts
The springs are all the same. Some people leave 2 springs out if they want it to be a little softer for street use. I don't know of any manual. I shim the clutches in the 9 inch a little looser than I do in a Eaton Posi. If you shim them tight in the 9 inch they will pop and make a lot of noise.
Reply With Quote Quick reply to this message
The Following User Says Thank You to big gear head For This Useful Post:
Crosley (04-08-2013)
  #7 (permalink)  
Old 04-08-2013, 09:03 AM
S10xGN's Avatar
Gotta love a turbo!
 

Last journal entry: Body on Frame today.
Last photo:
Join Date: Aug 2004
Location: Port Neches, TX
Age: 61
Posts: 1,644
Wiki Edits: 0

Thanks: 0
Thanked 58 Times in 55 Posts
Quote:
Originally Posted by big gear head View Post
The springs are all the same. Some people leave 2 springs out if they want it to be a little softer for street use. I don't know of any manual. I shim the clutches in the 9 inch a little looser than I do in a Eaton Posi. If you shim them tight in the 9 inch they will pop and make a lot of noise.
Come to think of it, there was a shim (I guess) as it didn't have either facing material or ears. That little sheetmetal cover was busted in half, would that have been caused by it being shimmed too tight? I'm used to (well, not really) a true locker with the click, pop, and bang when going around corners...

Russ
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 04-08-2013, 09:08 AM
big gear head's Avatar
High Performance Rear Ends
 
Last photo:
Join Date: Nov 2009
Location: Central City, KY
Posts: 2,027
Wiki Edits: 0

Thanks: 10
Thanked 398 Times in 341 Posts
No, it was broke due to abuse or because it was weak.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 04-09-2013, 08:05 AM
S10xGN's Avatar
Gotta love a turbo!
 

Last journal entry: Body on Frame today.
Last photo:
Join Date: Aug 2004
Location: Port Neches, TX
Age: 61
Posts: 1,644
Wiki Edits: 0

Thanks: 0
Thanked 58 Times in 55 Posts
Alrighty, parts are on order. They did have a clutch shim kit, so I got that too. I found a great tutorial on 7173mustangs.com which I plan on using. Would appreciate it if ya'll would look them over and see if there's any bogus info that will steer me wrong:

How to Rebuild a Ford 9 inch.
How to Rebuild a Ford 9 inch. Part 2

Thanks!

Russ
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 04-09-2013, 09:54 AM
big gear head's Avatar
High Performance Rear Ends
 
Last photo:
Join Date: Nov 2009
Location: Central City, KY
Posts: 2,027
Wiki Edits: 0

Thanks: 10
Thanked 398 Times in 341 Posts
Doesn't look too bad to me. I could pick at it a little, but nothing that really makes a difference.
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 04-10-2013, 09:27 AM
S10xGN's Avatar
Gotta love a turbo!
 

Last journal entry: Body on Frame today.
Last photo:
Join Date: Aug 2004
Location: Port Neches, TX
Age: 61
Posts: 1,644
Wiki Edits: 0

Thanks: 0
Thanked 58 Times in 55 Posts
Alrighty, I'll keep ya'll posted and will prolly be asking further questions as things progress...

Russ
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 04-15-2013, 09:21 AM
S10xGN's Avatar
Gotta love a turbo!
 

Last journal entry: Body on Frame today.
Last photo:
Join Date: Aug 2004
Location: Port Neches, TX
Age: 61
Posts: 1,644
Wiki Edits: 0

Thanks: 0
Thanked 58 Times in 55 Posts
Alrighty, carrier bearings: How far are they supposed to press on? Is there a spec or anything? The reason I ask is that there is a rather large fillet on the new billet posi case half that doesn't (seem to) allow the bearing to press flush against the case. I can hold it up to a light source and see maybe 0.030" of daylight where it won't set completely flush. The axle end of the bearing is within 0.010" of being flush. I'm afraid that once together and set up, the "forces within" while under load, will change as the bearings seat further...

Russ
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 04-15-2013, 10:33 AM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
I think you're right to be concerned, but BGH will clear this up for you I'm sure. In the meantime all I can offer is on the ones I've seen the bearing ID had an adequate radius to accommodate the fillet on the carrier. If I was up against this and had no one to ask I'd relieve the inner bearing race ID enough to clear unless a different bearing would clear.

I have had pinion shims w/ID too small to sit flush w/o being opened up to clear the fillet... but that's a different deal obviously.

Good luck.
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 04-15-2013, 11:04 AM
big gear head's Avatar
High Performance Rear Ends
 
Last photo:
Join Date: Nov 2009
Location: Central City, KY
Posts: 2,027
Wiki Edits: 0

Thanks: 10
Thanked 398 Times in 341 Posts
The bearing must sit complete against the flat surface on the case. If it doesn't then you will have probblems later. Use a .001 feeler gauge to see if it is seated all the way.
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 04-15-2013, 04:00 PM
S10xGN's Avatar
Gotta love a turbo!
 

Last journal entry: Body on Frame today.
Last photo:
Join Date: Aug 2004
Location: Port Neches, TX
Age: 61
Posts: 1,644
Wiki Edits: 0

Thanks: 0
Thanked 58 Times in 55 Posts
Quote:
Originally Posted by cobalt327 View Post
I think you're right to be concerned, but BGH will clear this up for you I'm sure. In the meantime all I can offer is on the ones I've seen the bearing ID had an adequate radius to accommodate the fillet on the carrier. If I was up against this and had no one to ask I'd relieve the inner bearing race ID enough to clear unless a different bearing would clear.

I have had pinion shims w/ID too small to sit flush w/o being opened up to clear the fillet... but that's a different deal obviously.

Good luck.
Quote:
Originally Posted by big gear head View Post
The bearing must sit complete against the flat surface on the case. If it doesn't then you will have probblems later. Use a .001 feeler gauge to see if it is seated all the way.
I found a "tip" on Youtube concerning using an old inner race to press the carrier bearings, and bingo! Worked like a charm, now fully seated.

Thanks!

Russ
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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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
9" ford nodular questions hammerhead Transmission - Rearend 0 05-06-2006 12:34 PM
Ford 9" Questions ATX30Sedan Suspension - Brakes - Steering 4 03-03-2006 10:29 AM
Ford 9" questions 85Sierra Transmission - Rearend 2 02-22-2006 09:37 PM
Ford 9" questions jimmy p Transmission - Rearend 2 09-25-2004 08:31 AM
Ford 8" / 9" Questions DusterNut Transmission - Rearend 1 01-01-2003 11:49 PM


All times are GMT -6. The time now is 11:33 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.