The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 10-09-2023, 02:26 PM   #176
70STOVEBOLT
Senior Member
 
70STOVEBOLT's Avatar
 
Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,371
Re: 4L80E & TH400 Tech.

Quote:
Originally Posted by KQQL IT View Post
Is clinebarger still active here?

Did a 4l80 in my 73 and the tailshaft won't stop leaking 2 bushings 3 seals and all I've made it do is leak worse.
It looks like your driveshaft may be too long. The slip yoke should not go all the way into the tailshaft on the transmission. It should stick out about 3/4 to 1 inch.
__________________
70 C/10 SWB 402/TH400/3.73 "The Needy Beast"
200,000 Mile Club
Disc Brake Club

Owner installed options:
Front Sway Bar
Power Steering
Power Brakes
Cigar Lighter
Courtesy Lights
Deluxe Side Markers
Wiper Delay
Sliding Rear Window
Power Windows
Power Locks
Sniper EFI

2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear
70STOVEBOLT is offline   Reply With Quote
Old 10-10-2023, 08:31 AM   #177
Stepside Jim
Registered User
 
Join Date: Aug 2012
Location: Salem Mo
Posts: 652
Re: 4L80E & TH400 Tech.

Google 4l80e rear seal and bushing issues. I believe there were two different bushings used over the years. Something like 40 or 50 thousands difference on the inside diameter.
__________________
My 57 Chevy truck build.http://67-72chevytrucks.com/vboard/s...d.php?t=541132
Stepside Jim is offline   Reply With Quote
Old 10-10-2023, 08:32 AM   #178
KQQL IT
At the body shop.
 
KQQL IT's Avatar
 
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,239
Re: 4L80E & TH400 Tech.

Quote:
Originally Posted by 70STOVEBOLT View Post
It looks like your driveshaft may be too long. The slip yoke should not go all the way into the tailshaft on the transmission. It should stick out about 3/4 to 1 inch.


It's out about 1-1/8
Attached Images
 
__________________
" That didnt make it any newer "
" Dont antique the equipment "
KQQL IT is offline   Reply With Quote
Old 10-10-2023, 08:49 AM   #179
70STOVEBOLT
Senior Member
 
70STOVEBOLT's Avatar
 
Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,371
Re: 4L80E & TH400 Tech.

Quote:
Originally Posted by KQQL IT View Post
It's out about 1-1/8
Ah, ok. The one pic showed the yoke all the way in.
__________________
70 C/10 SWB 402/TH400/3.73 "The Needy Beast"
200,000 Mile Club
Disc Brake Club

Owner installed options:
Front Sway Bar
Power Steering
Power Brakes
Cigar Lighter
Courtesy Lights
Deluxe Side Markers
Wiper Delay
Sliding Rear Window
Power Windows
Power Locks
Sniper EFI

2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear
70STOVEBOLT is offline   Reply With Quote
Old 10-10-2023, 09:14 AM   #180
KQQL IT
At the body shop.
 
KQQL IT's Avatar
 
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,239
Re: 4L80E & TH400 Tech.

a pic from the mockup. The yoke is long almost twice that of my 400 yoke I replaced
__________________
" That didnt make it any newer "
" Dont antique the equipment "
KQQL IT is offline   Reply With Quote
Reply

Bookmarks


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

Forum Jump


All times are GMT -4. The time now is 06:25 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com