Notices
1997 - 2003 F150 1997-2003 F150, 1997-1999 F250LD, 7700 & 2004 F150 Heritage
Sponsored by:
Sponsored by: Auxito

Torque Convertor

Thread Tools
 
Search this Thread
 
Old Mar 7, 2008 | 12:35 PM
  #1  
KAWTECH's Avatar
KAWTECH
Thread Starter
|
New User
Joined: Feb 2008
Posts: 8
Likes: 0
Question Torque Convertor

does anyone have any recomendations for a heavy duty torque convertor. mine has come apart twice on my 2000 f150.5.4,4r70w tranny?
 
Reply
Old Mar 7, 2008 | 12:55 PM
  #2  
Bluegrass 7's Avatar
Bluegrass 7
Lead Driver
15 Year Member
Joined: Sep 2006
Posts: 7,907
Likes: 143
I had a baloon failure that caused the torrington bearings to break up and do the rest of the damage.
I now have a diesel 2 disc converter as well as a custom built heavey duty trans for towing in the 12,000 gross range.
The shifting is more precision, the convertor is low stall and the rest is built for heat reduction with high volume fluid pump and other custom parts.
If your looking for race grade then a custom convertor with an anti ballooning plate installed is what you want.
Depends on the application.
A truck is very hard on the average converter due to the weight and the low first gearing torque.
These stock converters are also poor for high RPM above about 5500.
 
Reply
Old Mar 7, 2008 | 01:31 PM
  #3  
KAWTECH's Avatar
KAWTECH
Thread Starter
|
New User
Joined: Feb 2008
Posts: 8
Likes: 0
Thanks bluegrass for the info.. when you say ballon failure, I'm assuming that means that the convertor swelled up like a ballon. Is that a correct assumption?
 
Reply
Old Mar 9, 2008 | 07:00 AM
  #4  
Bluegrass 7's Avatar
Bluegrass 7
Lead Driver
15 Year Member
Joined: Sep 2006
Posts: 7,907
Likes: 143
Yes that's what it means.
When it happens to excess, it pushes against the crank and the trans internals because there is very little clearence.
What happens is the crank can wear out the cranks main thrust bearing as well as take out the torrington bearing and it's related parts in the trans.
Race converter that need to take high power loads are built special to control this.
The diesel trucks that make a lot of torque have better built and more expensive converter to also handle this.
I took out a stock replacment converter form my supercharged car application for replacment with a sleightly higher stall version and even see the flex plate/crank bolt head impressions in the conveter indicating there was some expansion pressure there also.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
AerostarDad
Aerostar
8
Apr 24, 2010 11:06 AM
dieselaholic
1987 - 1996 F150 & Larger F-Series Trucks
8
Feb 16, 2010 06:16 PM
Calf_roper_John
1987 - 1996 F150 & Larger F-Series Trucks
9
Jan 7, 2008 08:00 PM
beisel
1999 - 2003 7.3L Power Stroke Diesel
4
Dec 6, 2000 04:55 PM
StockMan
1973 - 1979 F-100 & Larger F-Series Trucks
9
Jan 17, 2000 12:43 PM




All times are GMT -5. The time now is 01:39 AM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE