When I bought my truck, by certain posts info, I determined that I had the E4OD. Today, while cleaning the truck , I gave a closer look to the door jamb sticker and turns out I have a 4R70W.
I am not concerned about it, since the transmission has only 8K miles on it (Ford Factory rebuild, $2700.00 , previous owner had it done, Dealership replaced.), but I am now very curious about the differences between the two transmission types.
So far, I have not been able to find info about it. Which transmission is more desireable and why? Should I be happy or concerned about the fact that it is a factory rebuilt transmission? Is there any specific issues to this transmission I should be aware of?
The truck is a 1995 F150 4X4 used primarily as a daily driver, but in the next few months I have a very long trip planned (3000 miles) and I would like to know if , in your opinion , there is anything to be concerned about. Is there any service to be performed before tackling such a trip?
Thank you so much in advance for sharing your expertise with me.

 

The 4R70W is an AODE.
The E40D is one great big honking futher mucker that weighs a bazillion pounds.
If I had my druthers it would be the 4R70W.

 

If by AODE you mean Automatic OverDrive Electronic, I was under the impression that the E4OD falls under that designation too...Or am I wrong?

 

I had read that the E4OD is just the electronic version of the 4R70, but I am no tranny expert. I have heard the 4R70 is a very good tranny, 95 and up E4ODs are siupposed to be pretty good too.

Good Luck,

Jim Henderson

PS: from a quick web search it looks like I am wrong, the AODE and 4R70W appear to be similar and the E4OD is different.

here is something from another site similar to our(on a quick look)...
The basic deffinitions are this:

AOD: Automatic OverDrive Manual valve body and all hard parts. This is an older transmission on the Ford/Lincoln/Mercury line of cars, and years vary with models.

AODE: Automatic OverDrive Electronic - This transmission uses an electronic control and takes input from the cars OBD I or OBD II complaint EEC IV/EEC V computer to adjust gears. Basically the same transmission as the 4R70W

4R70W -- This is shorthand for 4 Gear, Rear Wheel, 70%, Wide Ratio -- This is one of the later transmissions in the lineup, found in a lot of F/L/M cars and even trucks, with the improved versions being used even as late as 2003 in the Mercury Marauder. The new 4R100W is a truck transmission with a 100 gearing.

For a good writeup on the 4R70W and all of its possibilities, visit www.tccoa.com in the Tech Articles section, or http://www.mn12performance.com/mn12-...rans-tech.html

 

AODE/4R70W is an AutomaticOverDriveElectronic.
E4OD is an Electronic4speedOverDrive.

Same but different.
The AODE is an improved version of the AOD.
The E4OD is another critter all together. It weighs at least three times as much as an AODE and not nearly as good.

 

Is the E40D what comes behind a 460? Generally

 

The 4R70W is in the same family as the AOD and the AODE they just have added more computer control and different disignations. It stands for 4 speed with Reverse, 700 ft lbs of torque capacity, Wide ratio. I also think I remember hearing something about the C-4 being part of this family also.

The E4OD is not anything like the AOD family. It is in the same family as the C-6. The E4OD is just a C-6 with an OD added and more computer control. The 4R100 is a beefed up version of the E4OD and even more computer control. E4OD stands for Electronic 4 speed with OverDrive and the 4R100 stands for 4 speed with reverse and 1000 Ft lbs of torque capacity.

These spec are out of my Ford Tech manuals from Ford school.

If I had my pick I would have an E4OD/4R100 in my truck any day. The 4R70W will do fine just keep up on the maintenance with both transmissions.

The E4OD/4R100 are usually behind big blocks and diesels but have been put behind the small blocks too.

The 4R70W is only put behind the small blocks so this should tell you something about its strength.

Something to always remember about automatic transmissions is that crisp shifts are always recommended over slow, slipping shifts which can cause heat to build up. This is some of the trouble with todays transmissions. We want that smooth shift that you can hardly feel when in fact we are slowly hurting the trans when under towing and hauling conditions.

 

Glad to hear that. I have always hated the shifting of the newer trannies, I like the older more positive shift. When I pay off my 2000 F150 4.6 5 speed I am going to sell it and buy a 97 460 E40D and just have the tranny bulletproofed. The reason I say bulletproofed is that I have read that the E40D has had some problems. It has got to be stronger than my M50D although I guess it is apples and oranges.

 

Is there anything else to the maintenance of these transmissions besides ATF change?
How often should I change the fluid?

Thanks!

 

Suggested transmission service intervals are 30k, but I do mine after every summer due to towing a travel trailer and the summer heat. My intervals end up being about 10-15k and in my opinion is cheap insurance considering the overhaul cost. I drop the pan on my E4OD and change the filter every time and then drain the torque converter with the drain bolt in the converter hidden by the access panel on the bellhousing. This bolt was not installed in some 99 and newer trucks for some stupid Ford reason. I then just refill with 9-10 qts and start the truck up and add 4 more qts and then run the trans through all the gears stopping at each about 3-5 seconds then back to park. I check the trans level and add til its at the top of the hash mark when its warm.

Some of the newer 4R70W's take Mercon V instead of ATF!

I also drain and refill the transfer case at the same time and it takes anywhere from 3-6 qts of ATF depending on which one you have.

 

the 4r70w is the worst tranny ever i have a ford factory rebuild 3 years about 30000 miles and reverse is toast im going back to my older trucks with a c-6 never givin me problems and i get better fuel milage

 

Do you tow (or do anything heavy) with it?

 

i've towed one car with this truck other than that its all in town and hwy i use my 86 2wd with a c-6 for the heavy stuff because i know it will hold up

 

Did it give you any warning signs before failing?

 

the only sign i had was when they went to change filter and fluid about a month ago the fluid was black and the filter was just laying in the pan