looking to upgrade tranny - Pontiac GTO Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 04-26-2018, 08:55 AM Thread Starter
 
Join Date: Jun 2017
Posts: 16
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
looking to upgrade tranny

Good morning gentlemen , new to the forum. I have a 1967 pontiac tempest matching number 326 engine 2 speed st300 tranny. looking to rebuild the tranny , does anyone know if i’m able to put in a third gear or put in better gears ? the tranny runs fine , just looking to upgrade the tranny but keep the matching numbers. any suggestions ?
mhyl2000 is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 04-26-2018, 11:50 AM
 
1968gto421's Avatar
 
Join Date: Mar 2014
Location: Travelers Rest, South Carolina
Posts: 761
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 72 Post(s)
To my knowledge the easiest swap is to put in a BOP TurboHydromatic 350, AKA TH350. Using a TH350 with the BOP bellhousing (not Chevy) should be a bolt in swap. Hopefully some of the members here who have done this will chime in with tips. Below are some links to help:

https://www.gtoforum.com/f50/67-leman...e-th350-28113/

This is similar to the tranny in your Tempest and the chassis is common to GM A-bodies.
1968gto421 is offline  
post #3 of 3 (permalink) Old 04-26-2018, 05:25 PM Thread Starter
 
Join Date: Jun 2017
Posts: 16
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
ok thanks for the info i will start to look for a th350 with a bop bell housing .
mhyl2000 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
66 Tranny chieftugger 1964-1974 Tempest, Lemans & GTO Undercarriage, Frame, Transmission and Differential Discussions. 3 04-30-2017 06:29 PM
Need advice converting an Turbo 400 auto tranny to a manual tranny jimmy328 1964-1974 Tempest, Lemans & GTO General Discussion 2 09-16-2012 04:35 PM
Tranny upgrade on my '67... jeffdetrick Drive train, suspension, alignment and brakes. 0 01-15-2007 09:47 PM
pontiac tranny to chevy tranny wannagofast 1964-1974 Tempest, Lemans & GTO General Discussion 1 03-27-2006 08:23 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