Powerglide/TH400 Swap - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum

Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend
User Name
lost password?   |   register now

LinkBack Thread Tools
  #1 (permalink)  
Old 03-13-2005, 04:11 PM
67ssguy's Avatar
Registered User
Join Date: Jul 2004
Location: Mississippi
Posts: 13
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Powerglide/TH400 Swap

I have a 67 malibu convertible with a powerglide trans. I would like to swap in a TH400. What will be needed to complete this swap? Can I use the same drive shaft by just swapping the yokes? thanks, charlie

Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 03-13-2005, 04:59 PM
poncho62's Avatar
Hotrodders.com Moderator
Last wiki edit: Streetbeasts links
Last journal entry: at car show
Last photo:
Join Date: Oct 2003
Posts: 17,863
Wiki Edits: 5

Thanks: 45
Thanked 636 Times in 479 Posts
The 400 is longer, so tge shaft will have to be cut. Why not go with a turbo350?...It's a bolt-in, and it doesn't rob as much power from your engine.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 03-13-2005, 05:40 PM
OldBucsFan's Avatar
Join Date: Jun 2003
Location: Trenton, NJ
Age: 58
Posts: 57
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
The glide and the 350 have the same rear mount distance - 22 1/4 inches. The 400 mount is about 5 3/4 inches further back, so you would have to move the crossmember accordingly. The 350 case measures 5 5/16 inches longer than the glide. The glide tailshafts measured 9 or 12 inches, while the 350 tailshafts were either 6, 9, or 12 inches long. The only way the driveshaft would not have to be cut and balanced is if your glide tailshaft currently measures 12 inches and you get a 350 with a 6 inch tailshaft. Even then, you still need to carefully check the yoke depth on the driveshaft to insure a good fit. It will ride about 5/16 inch further out.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 03-15-2005, 07:03 AM
msc66's Avatar

Last journal entry: pics
Last photo:
Join Date: Aug 2004
Location: Atlanta GA
Age: 58
Posts: 87
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
crossmember mounts

Does your convertible have a boxed frame? On my old Chevelle all I had to do was slide the crossmember back in the frame and drill new holes but on my Skylark convertible with a boxed frame I had to cut the mounting brackets off and move them back and re-weld for the th-400. You might want to check this out.
Reply With Quote Quick reply to this message

Recent Transmission - Rearend posts with photos

Quick Reply

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last 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:
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Vortec Engine Swap Problems 5700 350 capps Engine 22 01-28-2016 12:06 AM
Engine Swap - 64 Galaxie Billy Boy Engine 5 07-21-2005 02:49 PM
Found this site looking for swap info Roadrod Introduce Yourself 1 11-07-2004 10:16 AM
cruisomatic to E4OD swap?? flamedfordbronco Transmission - Rearend 8 09-07-2004 06:56 PM

All times are GMT -6. The time now is 08:51 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.