New to the nation with 4r100 problems - PowerStrokeNation : Ford Powerstroke Diesel Forum
LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 07-30-2015, 01:35 AM Thread Starter
PSN Newb
Join Date: Jul 2015
Posts: 2
New to the nation with 4r100 problems

I have a 99 f-350 with a 4r100 transmission. I am fairly new to a Powerstroke, but lost the transmission this last weekend and after all the threads I have read about them I am concerned. I don't tow a bunch but when I do I usually haul a cord of wood or a 3 horse slant trailer or the occasional side by side or four wheeler trailer. I usually pull about 2 or 3 times a month. I am curious if I need a built tranny or if a stock will hold up to what I use it for. I have looked at transmissions with sonnax valves and a upgraded valve body and triple disc t/c. Are these adequate for what I use it for? Also my stroker is completely stock and I plan on keep it that way. Any advice would be greatly appreciated.
Idahopowerstroker is offline  
Sponsored Links
post #2 of 2 (permalink) Old 07-30-2015, 04:11 PM
Former Ford Trans Engr.
Mark Kovalsky's Avatar
Join Date: Aug 2007
Location: SE Florida
Posts: 3,028
Re: New to the nation with 4r100 problems

A stock trans will hold up just fine with a stock engine.

To make the new trans live, scrap the air to oil cooler that's on the truck. It's contaminated and can't be cleaned well enough to reuse it. Replace it with a cooler from a 6.0L truck. It will bolt to the same mounts. You'll need two 3/8" - 1/2" adapters to connect the lines. Any hardware store will have these.

If you have a radiator cooler it probably can be flushed. Most of these are simply a coiled tube. If it is a small stacked plate cooler it needs to be replaced.

Former Ford Automatic Transmission Engineer

“The good thing about science is that it's true whether or not you believe in it.” ― Neil deGrasse Tyson
Mark Kovalsky is offline  

Quick Reply

Register Now

In order to be able to post messages on the PowerStrokeNation : 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:
Please enter a password for your user account. Note that passwords are case-sensitive.


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

Email Address:


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