Rebuilding the differential - Pontiac GTO Forum
User Tag List

LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 06-25-2016, 09:23 PM Thread Starter
Join Date: Jun 2016
Location: Tennessee
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Rebuilding the differential

I have a number matching 1966 GTO that I have had since 1980, I have had the engine rebuilt (thanks to Butlers Performance), rebuilt the transmission myself, but have never touched the differential, any suggestions on rebuilding or replacing?
Guinness is offline  
Sponsored Links
post #2 of 3 (permalink) Old 06-27-2016, 10:01 AM
Join Date: Jan 2015
Location: Injun Territory, 'Merica!
Posts: 1,611
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 121 Post(s)
If you drive the vehicle moderately with near stock size tires and wheels, would consider starting with replacing the wheel bearings, if they have not been replaced. Sealed axle bearings are a ticking time bomb, so any times, they seize and chew up the axles. If the original rear is behind a relatively stock drivetrain, the posi still hooks up, and the rear end grease has been changed several times over the course of the GTO's life, the rear may not need much. I can get much more detailed, if you need. Have found the limits of the gray iron Pontiac 8.2 rears, as well as the limits of other performance era rears.
Pinion head is offline  
post #3 of 3 (permalink) Old 06-28-2016, 09:26 PM Thread Starter
Join Date: Jun 2016
Location: Tennessee
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Great suggestion, I have stock tires and spin the wheels every now and then, but nothing serious. I had the back wheel bearing go out many years ago, quite scary, but should probably get them replaced. I have never done any maintenance to the differential, so I am guessing I need to change the oil/grease? If you have a pointer to how to do this I would really appreciate it.
Guinness is offline  
Sponsored Links

  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO Undercarriage, Frame, Transmission and Differential Discussions.

Quick Reply

Register Now

In order to be able to post messages on the Pontiac GTO Forum 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:


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Similar Threads
Thread Thread Starter Forum Replies Last Post
Recommendation for Engine Rebuilding 67PLUMMIST 1964-1974 Tempest, Lemans & GTO Complete Engine Compartment Discussion 8 04-03-2015 08:15 AM
Preping Parts for rebuilding/restoring. Josh.AZ.GTO 1964-1974 Tempest, Lemans & GTO General Discussion 12 08-15-2011 11:48 AM
Cylinder Head Rebuilding Help Needed g-mack 1964-1974 Tempest, LeMans & GTO Engine Tuning and High Performance 2 03-03-2009 07:29 AM
rebuilding thc301 Engine Discussions 5 06-21-2007 10:37 PM
Need Help Rebuilding! Split1atom 2004-2006 GTO General Discussion 3 12-10-2004 06:22 AM

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

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