99 Tranny question - Ford Powerstroke Diesel Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 5 Old 04-15-2007, 10:21 AM Thread Starter
Powerstroke.org Rookie
 
Join Date: Apr 2007
Location: Bakersfield, Ca
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
99 Tranny question

Hello

I am new to the forum and this is my first post. I just purchased a 99 crew cab f250 4x4 with the 7.3 in it. It has an automatic tranny. The truck is stock and there are no problems with the tranny now, however I am looking at doing some enging mods and either a 6 or 8" lift kit with 36" tires. I was wondering if anyone could tell me some common problems with this tranny and how much power it could handle. I want to upgrade anything now before I do anything else to the truck so that I dont have issues come up on the future because of it. Will my stock tranny handle the lift kit and tires? Do I need to look at an upgraded torque converter? I just want to do it right the 1st time and not pay for my mistakes later. The truck and tranny have 76k miles. Thanks for all the help in advance.

Adam
awrob27 is offline  
Sponsored Links
Advertisement
 
post #2 of 5 Old 04-15-2007, 10:28 AM
duct tape & zip ties

 
bigcountrysg's Avatar
 
Join Date: Jul 2006
Location: Willis, MI
Posts: 10,761
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via Yahoo to bigcountrysg
Quote:
Originally Posted by awrob27 View Post
Hello

I am new to the forum and this is my first post. I just purchased a 99 crew cab f250 4x4 with the 7.3 in it. It has an automatic tranny. The truck is stock and there are no problems with the tranny now, however I am looking at doing some enging mods and either a 6 or 8" lift kit with 36" tires. I was wondering if anyone could tell me some common problems with this tranny and how much power it could handle. I want to upgrade anything now before I do anything else to the truck so that I dont have issues come up on the future because of it. Will my stock tranny handle the lift kit and tires? Do I need to look at an upgraded torque converter? I just want to do it right the 1st time and not pay for my mistakes later. The truck and tranny have 76k miles. Thanks for all the help in advance.

Adam
In my opinion if it ain't broke don't mess with it. I understand your concern for upgrading and making the truck strong so it won't break. But to be honest if you upgrade the torq converter you might as well go through the whole tranny and upgrade everything. The torq converter you should use is a triple disc, upgrade the clutches and plates in the tranny, upgrade the valve body as well with heavier springs so you have firmer shifts and higher line pressure which will help keep the clutches hold better under load. Which means they won't slip as easily.

As for your stock tranny holding up to the lift and bigger tires. It will but for how long who knows. Most tranny problems are caused by the tc slipping. Which then contaminates the fluid which then ruins the rest of the tranny.

I am on tranny #3 in my truck, this time I did it right. Cost is about 2,500 bucks. So you make the decission.


Your Actions Today, Decide Your Future Tomorrow

2005 6.0 Crew Cab Long Box Lariat, current truck

2004 6.0 destroyed by contaminated fuel

2002 7.3L burnt
bigcountrysg is offline  
post #3 of 5 Old 04-15-2007, 11:55 AM
Banned
 
Join Date: Jan 2007
Location: Goodyear, AZ
Posts: 2,083
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
What, do you mean you did it right? What were the changes you made to make this tranny better?

Thanks
Shawn
Performance Oil Products is offline  
post #4 of 5 Old 04-15-2007, 11:58 AM
duct tape & zip ties

 
bigcountrysg's Avatar
 
Join Date: Jul 2006
Location: Willis, MI
Posts: 10,761
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via Yahoo to bigcountrysg
Quote:
Originally Posted by dieselman77 View Post
What, do you mean you did it right? What were the changes you made to make this tranny better?

Thanks
Shawn
Well after my 2 attempts at rebuilding just replacing all the internals with oem parts, I had the tranny rebuilt with all sun coast parts and sun coast triple disc tc. As well a shift kit installed. My tranny problems are gone.


Your Actions Today, Decide Your Future Tomorrow

2005 6.0 Crew Cab Long Box Lariat, current truck

2004 6.0 destroyed by contaminated fuel

2002 7.3L burnt
bigcountrysg is offline  
post #5 of 5 Old 04-15-2007, 01:27 PM
Banned
 
Join Date: Jan 2007
Location: Goodyear, AZ
Posts: 2,083
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
IC, suncoast stuff is top of the line.
Performance Oil Products is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









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.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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

 
For the best viewing experience please update your browser to Google Chrome