Versions of the 9.75 Axle - Ford Truck Enthusiasts Forums



1997 - 2003 F150 1997-2003 F150, 1997-1999 F250LD, 7700 & 2004 F150 Heritage

Versions of the 9.75 Axle

Reply
 
 
 
Thread Tools Search this Thread
  #1  
Old 08-20-2012, 06:22 AM
BURNSTOUGHFORD's Avatar
BURNSTOUGHFORD BURNSTOUGHFORD is offline
Posting Guru
Thread Starter
 
Join Date: May 2006
Location: Iowa
Posts: 2,483
BURNSTOUGHFORD has a good reputation on FTE.BURNSTOUGHFORD has a good reputation on FTE.
Versions of the 9.75 Axle

I had a main rear outside axle bearing catostrophically fail on my while towing my race trailer to the races this weekend.

Luckily i noticed it before it got to bad.

Upon disasembly i noticed that the bearings have smaller diameter rollers than the bearings of my fathers 9.75 rear axle that i did a few months prior.

After going tot he parts store i confirmed that his 9.75 axle had heavier bearings and shafts in his 9.75 axle.

I got my axle from a junk yard a few years ago and swapped it in place of my 8.8. I didnt know there was a difference i the years so i didnt really care what year of 9.75 it was.

Turns out that the 97 9.75 axles are a little lighter duty than there counter part 98-03's. Smaller beairngs and axle shafts.

Can anybody confirm this?
Reply With Quote
  #2  
Old 08-20-2012, 12:29 PM
Lead Head Lead Head is offline
Post Fiend
 
Join Date: Jul 2007
Location: Rhode Island
Posts: 7,633
Lead Head is a name known to allLead Head is a name known to allLead Head is a name known to allLead Head is a name known to allLead Head is a name known to allLead Head is a name known to all
RockAuto shows every F-150 9.75" axle using the same bearing from 1997-2012.

3.0370" OD, 1.7080" ID

EDIT: It appears that certain early 9.75" axles used 34 spline 8.8" axle shafts and tubes and bearings for whatever reason. Odd.
Reply With Quote
  #3  
Old 08-20-2012, 05:59 PM
steve(ill)'s Avatar
steve(ill) steve(ill) is offline
Post Fiend
 
Join Date: Jul 2005
Posts: 8,845
steve(ill) has a great reputation on FTE.steve(ill) has a great reputation on FTE.steve(ill) has a great reputation on FTE.steve(ill) has a great reputation on FTE.steve(ill) has a great reputation on FTE.
there was a post on here about 6 months ago where someone ran into the "small" bearing on a 97 model.
Reply With Quote
  #4  
Old 08-21-2012, 07:12 AM
BURNSTOUGHFORD's Avatar
BURNSTOUGHFORD BURNSTOUGHFORD is offline
Posting Guru
Thread Starter
 
Join Date: May 2006
Location: Iowa
Posts: 2,483
BURNSTOUGHFORD has a good reputation on FTE.BURNSTOUGHFORD has a good reputation on FTE.
Ya thats my luck. I pick up a used 9.75 to replace my busted 8.8 and i get the first year of it that is light duty. Oh well.
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
9.75" 3.73 rear axle rebuild robbv 2009 - 2014 F150 0 04-23-2017 09:53 AM
9.75 3:55 rear end in a 8.8 3:55 rear end truck ryanboisture 2015+ F150 3 03-10-2017 08:54 AM
8.8 or 9.75 rear axle? AUTOHAUL 2015+ F150 14 09-24-2016 03:37 PM
2002 f150 rear axle drum to disc brakes 97anny 1997 - 2003 F150 1 01-25-2016 05:59 AM
REAR AXLE QUESTION!! Ranger Bob 2004 - 2008 F150 50 08-03-2014 07:34 PM


Go Back   Ford Truck Enthusiasts Forums >

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -5. The time now is 06:44 AM.