ford 9" problems - Off-Road Forums & Discussion Groups
Ford Early Bronco, 66-77 All discussion of Early Ford Bronco's to 1977

LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 03-03-2001, 08:37 PM
Posts: n/a
ford 9\" problems

Heres the deal. A friend just bought a 73 bronco with a ford 9 inch rear end. Once we got the engine running and went to drive away the rear drive shaft turned but the bronco did not move. the drive shaft could be turned by hand yet the car did not move. assumeing the ring gear blowen we pulled the axles and 3rd member.

the axles are not broken and splines are good. the spider gear splines look good and the ring and pinion are good. when we put the axles in the 3rd member with it out of the case. everything acts as it should. (we turn the pinion and the axles turn. needless to say I am very confussed and starting to question my sanity here.

Has any one seen anything similar. or is this some sort of fluk.

Thanks for any help.


Sponsored Links
post #2 of (permalink) Old 03-04-2001, 10:20 AM
Mud in my Veins
Steve83's Avatar
Join Date: Dec 2000
Location: Memphis, TN
Posts: 5,301
Thanks: 0
Thanked 0 Times in 0 Posts
Re: ford 9\" problems

Check the INPUT yoke on the front of the diff where the driveshaft connects to the pinion. If it's stripped, it would have enough grip to spin the axleshafts alone, but NOT propel the truck. Do the whole test again (with the diff out) with some serious resistance on the axleshafts and see what's not turning.

Steve 83 Bronco 4.9L
<font color=red>Build it; Don't buy it...</font color=red>
Steve83 is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Off-Road Forums & Discussion Groups forums, you must first register.
Please enter your desired user 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:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

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 On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome