Automatic Transmission 2-Speed thru 10-Speed GM Autos | Converters | Shift Kits
Sponsored by:
Sponsored by:

TH400 to 4l80e driveshaft question

Thread Tools
 
Search this Thread
 
Old Mar 30, 2008 | 01:05 PM
  #1  
theblur98ss's Avatar
Thread Starter
TECH Junkie
iTrader: (71)
 
Joined: Mar 2002
Posts: 3,703
Likes: 0
From: East Brady, Pa
Default TH400 to 4l80e driveshaft question

I currently have a th400 tranny and I'm switching to a 4l80e. These use the same yoke on the tranny side correct? How long is the 4l80e shaft compared to the t400? I have a denny's driveshaft so if it needs shortened the labor is covered. Thanks for the help.
Reply
Old Mar 30, 2008 | 02:11 PM
  #2  
RICE ETR's Avatar
Turbo Addict
iTrader: (3)
 
Joined: Apr 2002
Posts: 1,128
Likes: 1
From: Virginia
Default

I am doing the same thing and have heard that the yokes are the same...I had to have the inside of mine machined to slip completely inside of the truck th400 I have....but was told this will be fine with the 4L80e.
I know MM is running his Denny's d/s originally set-up for M6/moser 12 bolt in his after just swapping the yoke. I think your d/s will have to be shortened about 3-3.5" if you are running a 4" Th400 tailshaft now.
Best thing to do is get the tranny in the car then measure what it actually is.
Reply
Old Mar 30, 2008 | 02:15 PM
  #3  
JMBLOWNWS6's Avatar
9 Second Club
iTrader: (17)
 
Joined: Nov 2002
Posts: 4,997
Likes: 0
From: New Braunfels ,Tx
Default

Use the short yoke for a th400
Reply
Old Mar 31, 2008 | 04:03 PM
  #4  
theblur98ss's Avatar
Thread Starter
TECH Junkie
iTrader: (71)
 
Joined: Mar 2002
Posts: 3,703
Likes: 0
From: East Brady, Pa
Default

Originally Posted by JMBLOWNWS6
Use the short yoke for a th400
Is that the 4" tail? That appears to be what I have now.
Reply




All times are GMT -5. The time now is 07:11 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE