Th400 maintenance - Pontiac GTO Forum
User Tag List

 6Likes
  • 4 Post By BLK69JUDGE
  • 2 Post By john23
 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 09-30-2018, 04:24 PM Thread Starter
 
deanhickey's Avatar
 
Join Date: Apr 2015
Location: London and Maine
Posts: 153
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 38 Post(s)
Garage
Th400 maintenance

I have my 68 th400 out of my car while awaiting the engine to be redone. I am looking for recommendations on any maintenance that should be done wile I have it out and am able to work on it>
deanhickey is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 09-30-2018, 07:15 PM
 
BLK69JUDGE's Avatar
 
Join Date: Jun 2010
Posts: 544
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 67 Post(s)
a few things come to mind

have you driven the transmision b4 ?
what color is the fluid ?
filter change with a new 1 piece rubber pan gasket
replace front and rear seals
pull speedo and install new o rings and check gear shaft for wear.. JUST buy a new gear
was your speedo off before ?
gear change may be needed
drain the torque converter
new tranny mount
buy a ne w torque converter cover if u dont have one
lube the speedo cable
new dip stick tube O ring
new u joints

just off the top

Scott
BLK69JUDGE is online now  
post #3 of 3 (permalink) Old 10-08-2018, 10:45 AM
 
Join Date: Mar 2016
Location: aurora, colorado
Posts: 116
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Quote:
Originally Posted by BLK69JUDGE View Post
a few things come to mind

have you driven the transmision b4 ?
what color is the fluid ?
filter change with a new 1 piece rubber pan gasket
replace front and rear seals
pull speedo and install new o rings and check gear shaft for wear.. JUST buy a new gear
was your speedo off before ?
gear change may be needed
drain the torque converter
new tranny mount
buy a ne w torque converter cover if u dont have one
lube the speedo cable
new dip stick tube O ring
new u joints


just off the top

Scott
Scott,
you've covered it pretty well. coupla things. now would be the time to do any dressing or modifications on the female fittings for the fluid lines in and out on the passenger side of the trans.
flush the trans cooler in the radiator. strongly consider installing an aftermarket trans cooler.
consider installing a drain plug in the trans pan. it makes future maintenance much easier with a clean way to draw down the trans fluid
consider installing a shift kit
and of course, the obvious, if the trans has lots of miles and/or abuse on it, now would be the time for a rebuild.
1968gto421 and deanhickey like this.
john23 is offline  
Sponsored Links
Advertisement
 
Reply

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

Quick Reply
Message:
Options

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:
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:
OR

Log-in











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
Tips on any maintenance I would need to do for long term storage millertime034 Service, Maintenance and Technical Discussion 6 01-01-2009 07:19 PM
Battery Maintenance OHIO06 Service, Maintenance and Technical Discussion 1 12-06-2008 12:00 PM
Dealer maintenance? kevracer Service, Maintenance and Technical Discussion 7 10-07-2006 09:27 PM
Small Maintenance Tip Wing_Nut Service, Maintenance and Technical Discussion 7 05-29-2006 03:07 PM
Is GTO high maintenance? h777 2004-2006 GTO General Discussion 17 06-28-2005 06:07 PM

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