4R75W and 4R70W Differences??? - F150online Forums

4R75W and 4R70W Differences???

Old 04-17-2004, 11:12 PM
Junior Member
Thread Starter
Join Date: Apr 2004
Posts: 18
Question 4R75W and 4R70W Differences???

What are the differences between a 4R75W and a 4R70W transmission?
Reply With Quote
Old 04-20-2004, 05:47 PM
Senior Member
Join Date: Jun 2000
Location: Missouri
Posts: 361
I'm not a trans expert but I've never heard of a 4R75W. What is it used in?
Reply With Quote
Old 04-21-2004, 07:24 PM
Junior Member
Thread Starter
Join Date: Apr 2004
Posts: 18
It is in my 2004 Ford Expedition. The 4.6L's get the 4R70W and the 5.4L's get the 4R75W. I think the expeditions used to use the 4R100 prior to 2003. I don't know why they changed transmissions as they still use the same 5.4L.
Reply With Quote
Old 04-24-2004, 03:19 PM
Join Date: Jun 2002
Location: The Florida Keys
Posts: 77
you mean the new 5 speed auto tranny? they are totally different in every way.
Reply With Quote
Old 04-24-2004, 03:36 PM
Senior Member
Join Date: Mar 2001
Location: Whidbey Island, WA
Posts: 411
Originally posted by silver bullit99
you mean the new 5 speed auto tranny?
The 4R75W is a 4-speed auto
Reply With Quote
Old 04-24-2004, 03:44 PM
Senior Member
Join Date: Mar 2001
Location: South Dakota
Posts: 865
here is a cut and paste from ford media about 4r75e...:


Matched to the new 5.4-liter V-8 is a new 4R75E automatic transmission, an evolution of the 4R70E used on the current F-150. Upgraded to handle the torque of the 5.4-liter engine, this transmission shares patented upgrades with the 4R70E, which backs the 4.6-liter V-8:

* A redesigned torque converter improves launch performance and increases efficiency.
* A turbine speed sensor improves transmission control, providing the basis for fully electronic shift scheduling to limit "hunting" and to fine-tune shift speed and feel.
* Increased microprocessor speed improves responsiveness and precision of the control system.
* "Smart" fully electronic shift scheduling knows what the torque will be in the next gear so it chooses the shift points based on the vehicle's projected performance in the next gear.
* Coupled with the electronic throttle strategy, the transmission computes the output torque required to maintain the vehicle speed, and chooses the correct gear and converter state accordingly.
* A sealed case and lifetime transmission fluid make the transmission maintenance free, while adaptive pressure control maintains consistent shift feel over time.

By predicting the performance of the truck in the next gear, the computer-controlled transmissions provide a more sophisticated solution to heavy demands than a simple shift delay switch, such as the one-size-fits-all "towing mode" some competitors use.

Last edited by TroyK; 04-24-2004 at 03:49 PM.
Reply With Quote
Old 04-24-2004, 04:14 PM
Junior Member
Thread Starter
Join Date: Apr 2004
Posts: 18
Thanks everyone for the reply's. I checked my owners manual again and under refill capacities it says 4R70/75 E-W On my window sticker it says AODEW/4R talk about confusing! Anyway I do know that it is a 4 speed Auto, that much I do know!
Reply With Quote
Old 04-24-2004, 06:47 PM
Senior Member
Join Date: May 2000
Posts: 4,761
The 70, 75, and 100 are the torque ratings; 700, 750, and 1000 ft./lbs. which is engine torque multiplied by 2 by the torque convertor. So, 350, 375, and 500 ft./lbs. of engine torque.
Reply With Quote

Related Topics
Thread Starter
Last Post
10-27-2016 08:48 AM
V8 Engines
10-20-2015 02:06 AM
Wheels, Tires & Brakes
10-06-2015 11:17 AM
F 1Fiddy
V6 Engines (including Ecoboost)
10-03-2015 11:12 AM
09-26-2015 03:56 PM

Thread Tools
Search this Thread

Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are Off
Refbacks are Off


All times are GMT -4. The time now is 10:20 PM.