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-   -   4R75E same as 4R75W transmissions? (https://www.f150online.com/forums/transmissions/520714-4r75e-same-4r75w-transmissions.html)

Rpjones 04-23-2019 04:53 AM

4R75E same as 4R75W transmissions?
 
I have a 2007 F150 5.4 3v with trans code Q which is the 4R75E. Iím trying to figure out if the rebuild kit for the 4R75W is the same? My reverse went out and Iím not going to pull the trans to fix with out going ahead and doing a rebuild since it has 217xxx miles on it. Canít get a straight answer anywhere on the web, hope someone can help please and thank you!

mitymerc 04-23-2019 08:37 PM

Officially, Ford never used the 4R75W name... 2006-2014 are 4R75E transmissions. rebuild kits for 2004 and newer are the same. Make sure you get a new reverse band, since yours is most likely broken. Every truck transmission I have rebuilt with no reverse had a broken band.

https://cimg5.ibsrv.net/gimg/www.f15...024b114a92.jpg
https://cimg6.ibsrv.net/gimg/www.f15...a266b842c9.jpg
https://cimg0.ibsrv.net/gimg/www.f15...03040b0d3c.jpg

Rpjones 04-24-2019 12:18 AM

Thanks! Thatís the info I needed, rebuild kits I find say 75w so I was just making sure it was the same thing. They donít come with a reverse band so planned to get one also!

Darrin Burch 04-24-2019 01:02 PM


Originally Posted by mitymerc (Post 5249613)
Officially, Ford never used the 4R75W name...

That's not right. Ford absolutely used the name 4R75W. I know a Ford engineer that helped introduce it. Here are a few examples from the 04 factory service manuals since I have that DVD in right now.

But, it is correct that the kit would be the same from 04 on regardless of 70 or 75 or what letter comes after the 70 or 75.

https://cimg6.ibsrv.net/gimg/www.f15...f92325ecd4.jpg
Panther platform
https://cimg4.ibsrv.net/gimg/www.f15...915b0f3df3.jpg
SN95 platform

ManualF150 04-24-2019 02:20 PM

Very neat info. Thanks for sharing Darrin.

mitymerc 04-24-2019 05:56 PM

why does it matter what the transmission is called? or who's right and who is wrong? 2006 and up is a 4R75.. kits are the same..

Darrin Burch 04-24-2019 09:18 PM

Look, I'm just not one to offer information that isn't factual. It's a HUGE pet peeve of mine. I do what I do to try and help people, not misinform them.

I expect to be challenged on what I say because it's all part of it. The key is to work very hard to know what you're talking about and not say anything you can't positively prove. There is no point in it. It definitely doesn't help anyone and it actually, honestly hurts everyone that reads it by arming them with nonsense.

You didn't need to include what you said in your original post. The bigger question is why did you do that if what the transmission is called doesn't matter? If you hadn't have included that then we wouldn't be discussing it. Still.

But whatever.

Here's another thing I learned a LONG time ago. It's NOT about me. So, when I'm wrong, I admit that I'm wrong and almost always thank the person showing me my error for helping me learn something so that I can more accurately share with others. But, that's just me.

D

ManualF150 04-24-2019 10:14 PM

mitrymerc/Darrin, why did they make the 4R70 and 4R75? I see that they are both made at the same plant too; Sharonville/Livonia?

I remember reading a while back that it was just electronics to make it "shift smarter" and a better torque converter?

Darrin Burch 04-24-2019 11:25 PM


Originally Posted by ManualF150 (Post 5249648)
mitrymerc/Darrin, why did they make the 4R70 and 4R75? I see that they are both made at the same plant too; Sharonville/Livonia?

I remember reading a while back that it was just electronics to make it "shift smarter" and a better torque converter?

There were differences within the valve body and vehicle calibrations. No question about that.

Torque converter wise, on the passenger cars there was definitely a difference with the 4R75W. They had furnace brazed fins and a larger sprag. Those things I have seen personally.
I cannot verify this, but I was told that the converter in those had a thrust bearing instead of a thrust washer. Then, the other day I was told that this was incorrect. So I don't know. They may have still been built with a thrust washer. I haven't been able to positively verify that either way and I have exactly zero personal experience internally on them to know firsthand. Torque converters are not my thing, so I have to rely on secondhand info at best here. If I find out for sure then I will update.

As for the internals, if you took all the internals out of a 4Ranything built 04 and newer and gave them to a builder they wouldn't be able to tell you what the factory called it.

D

Mark Kovalsky 04-26-2019 09:01 AM


Originally Posted by ManualF150 (Post 5249648)
mitrymerc/Darrin, why did they make the 4R70 and 4R75? I see that they are both made at the same plant too; Sharonville/Livonia?

The 4R70 has 700 lb-ft of torque capacity after the torque converter multiplication. The 4R75 has 750 lb-ft capacity.

Also, Sharonville and Livonia are two different plants. Sharonville is in Sharonville, Ohio, a suburb of Cincinnati. Livonia is in Livonia, MI, a suburb of Detroit, I worked at this plant for 19 years.

ManualF150 04-26-2019 12:24 PM

Interesting.

Sorry, the way I worded it, I mean to say it the opposite: the are both made in different plants.

Thanks for the info. Very neat.


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