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

Broken Case on TH400

Thread Tools
 
Search this Thread
 
Old Apr 20, 2009 | 01:13 AM
  #1  
luckyhenriksen's Avatar
Thread Starter
TECH Regular
iTrader: (1)
 
Joined: Apr 2008
Posts: 472
Likes: 0
Default Broken Case on TH400

So I was mating the engine and trans today and was tightening one of the bolts when it popped loud and a chunk of the case has broken off. what can I do about it? is it still usable?

Sorry for the blurry pics, couldn't get camera to manual focus



Reply
Old Apr 20, 2009 | 06:13 AM
  #2  
forcd ind's Avatar
TECH Veteran
15 Year Member
Liked
Loved
Community Favorite
iTrader: (7)
 
Joined: Sep 2007
Posts: 4,188
Likes: 293
From: woodbine, md
Default

something must not have been flush, or was a tight fit over the locating dowle
it can be repaired, needs another case or jig bolted to it to keep it flush-a larger trans shop welds them all the time-i repaired one in the 11 o clock hole
Reply
Old Apr 20, 2009 | 06:53 AM
  #3  
FTICONVERTERS's Avatar
LS1Tech Sponsor
15 Year Member
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Aug 2007
Posts: 1,376
Likes: 96
From: Deland, FL
Default

saw thye bell housing off and put an ultra bell on it.It is SFI approved and wont break.We have them in stock for 229.00.Ends this problem.You need to make sure the converter was all the way in though.

Greg
__________________
FTI COMPETITION CONVERTERS AND TRANSMISSIONS
"IT'S NOT CHEATING, IT'S THE COMPETITIVE EDGE."
1-866-726-8358
info@ftiperformance.com
FTIPerformance.com
FTI Converter build sheet

Reply
Old Apr 20, 2009 | 09:05 AM
  #4  
built408's Avatar
TECH Fanatic
iTrader: (10)
 
Joined: May 2007
Posts: 1,784
Likes: 1
From: Fort Worth Texas
Default

I would double check to make sure the converter was in properly
Reply
Old Apr 20, 2009 | 09:12 AM
  #5  
V6 Bird's Avatar
TECH Senior Member
iTrader: (15)
 
Joined: Nov 2001
Posts: 5,109
Likes: 0
From: Grand Prairie, TX
Default

If he broke that part of the case, chances are good he also broke the pump in the trans too. Good carnage bro! Congrats! Lesson learned
Reply
Old Apr 20, 2009 | 10:26 AM
  #6  
luckyhenriksen's Avatar
Thread Starter
TECH Regular
iTrader: (1)
 
Joined: Apr 2008
Posts: 472
Likes: 0
Default

I probably didn't have the verter in properly, although I didn't really think there was a wrong way to do that....... must have just got too much pressure on it. What do you mean saw it off and put an SFI bellhousing on? I didn't know you could just tear up the case
Reply
Old Apr 20, 2009 | 12:43 PM
  #7  
pddye's Avatar
10 Second Club
iTrader: (14)
 
Joined: Jul 2006
Posts: 686
Likes: 0
From: brimfield, illinois
Default

I'd say put an ultra bell on as well. Thats what I have on mine. Also look to see if your bell housing is hitting the bolts on the back of the motor that hold the rear plate on. I had to grind my bell housing because it was hitting bolt heads on the back of the block.
Reply
Old Apr 20, 2009 | 12:56 PM
  #8  
slow67's Avatar
Gingervitis Addict
15 Year Member
iTrader: (2)
 
Joined: Nov 2004
Posts: 2,399
Likes: 3
From: DFW
Default

Originally Posted by luckyhenriksen
I probably didn't have the verter in properly, although I didn't really think there was a wrong way to do that....... must have just got too much pressure on it. What do you mean saw it off and put an SFI bellhousing on? I didn't know you could just tear up the case
Yes, you can cut the bellhousing off and the Ultrabell bolts to the pump.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-5

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-6

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Apr 20, 2009 | 01:28 PM
  #9  
GNXClone's Avatar
On The Tree
iTrader: (7)
 
Joined: Sep 2007
Posts: 122
Likes: 1
Default

Will the ultra bell fit a 4L80E?
Reply
Old Apr 20, 2009 | 04:40 PM
  #10  
pddye's Avatar
10 Second Club
iTrader: (14)
 
Joined: Jul 2006
Posts: 686
Likes: 0
From: brimfield, illinois
Default

I'm sure someone makes one for a 4l80e. PM a vendor or maybe one will chime in.
Reply
Old Apr 20, 2009 | 07:06 PM
  #11  
luckyhenriksen's Avatar
Thread Starter
TECH Regular
iTrader: (1)
 
Joined: Apr 2008
Posts: 472
Likes: 0
Default

Hmmm ok but for cheap fix until I can get money for an ultra bell, I can get a shop to weld it?
Reply
Old Apr 21, 2009 | 06:59 AM
  #12  
FTICONVERTERS's Avatar
LS1Tech Sponsor
15 Year Member
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Aug 2007
Posts: 1,376
Likes: 96
From: Deland, FL
Default

Its a little more involved than just sawing it off.We put our in the mill and machine them for a perfect fit but you can do it a home with a sawzall if you are carefull.The new bellhousing will bolt directly to the pump.

Greg
__________________
FTI COMPETITION CONVERTERS AND TRANSMISSIONS
"IT'S NOT CHEATING, IT'S THE COMPETITIVE EDGE."
1-866-726-8358
info@ftiperformance.com
FTIPerformance.com
FTI Converter build sheet

Reply
Old Sep 24, 2009 | 11:55 PM
  #13  
team39763's Avatar
TECH Enthusiast
iTrader: (3)
 
Joined: Oct 2005
Posts: 726
Likes: 0
Default

I had the same thing happen with my TH350. How can you tell if you broke the pump? Mine has been fixed, but I didn't think about the internals being damaged.
Reply




All times are GMT -5. The time now is 05:12 AM.

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