[9773powerstroke]

Can you put a transmission to transfer case 4x4 adapter from a 4r100 on a e4od transmission? i broke the stock aluminum one and the 4r100 had a cast iron adapter, they look almost identical just asking if anybody knows for sure. the 4r100 part im looking at has little bumps on the inside and a speed sensor hole, the one I pulled off has a smooth inside and no sensor hole.

 

[Steve83]

If it bolts up, and you plug the sensor hole (with a sensor?), it's fine. They're essentially the same transmission.

 

[9773powerstroke]

thank you thats exactly what i wanted to know

 

[JoeDown]

If it bolts up, and you plug the sensor hole (with a sensor?), it's fine. They're essentially the same transmission.

What would you have to change to an E40D to make it a 4R100?

 

[Steve83]

I'm not THAT familiar with slushboxes, but AFAIK, Ford only changed the TCC lockup solenoid winding; and then later, the name. You may find these interesting:



Find "transmission" on this page:
Terms & Abbreviations
Then find the first 2 instances of "e4od".

 

[Mark Kovalsky]

What would you have to change to an E40D to make it a 4R100?

The biggest change is that the 4R100 has both turbine speed and output speed sensors. The E4OD has no speed sensors for transmission control, but a few of them did have speedometer drives.

The torque converter clutch solenoid was an on/off solenoid in all E4ODs and early '99 4R100s. After that it switched to a PWM (Pulse Width Modulated) solenoid.

Several hard parts in the 4R100 are stronger than their E4OD counterparts. I don't have a list of them. I do know that they will fit in an E4OD.

 

[Steve83]

The E4OD...a few of them did have speedometer drives.

That would be '89-91 2WD.

The torque converter clutch solenoid was an on/off solenoid in all E4ODs and early '99 4R100s. After that it switched to a PWM (Pulse Width Modulated) solenoid.

Have you ever heard of someone connecting a 4R100 with PWM TCC to an On/Off EEC/PCM? Does it work, or does it burn out the solenoid, or does it damage the EEC? Can the older On/Off solenoid be swapped into the later 4R100?

It sounds like (other than the TCC question), you could drop any 4R100 into an older E4OD truck (given matching bellhousings) as a direct swap by simply abandoning the 2 extra speed sensors in-place.

 

[JoeDown]

The biggest change is that the 4R100 has both turbine speed and output speed sensors. The E4OD has no speed sensors for transmission control, but a few of them did have speedometer drives.

The torque converter clutch solenoid was an on/off solenoid in all E4ODs and early '99 4R100s. After that it switched to a PWM (Pulse Width Modulated) solenoid.

Several hard parts in the 4R100 are stronger than their E4OD counterparts. I don't have a list of them. I do know that they will fit in an E4OD.

How much work would it be to add those sensors? I ask cause I'd like to do the SD PCM mod but I have a John Wood built E40D so I don't want to replace it with a 4R100.

 

[Mark Kovalsky]

That would be '89-91 2WD.Have you ever heard of someone connecting a 4R100 with PWM TCC to an On/Off EEC/PCM? Does it work, or does it burn out the solenoid, or does it damage the EEC?

It will work. It will SLAM the converter on, though. To make it work correctly an orifice has to be added in the pump body. I don't have a diagram to show you just where it goes, but the info is out there.

Can the older On/Off solenoid be swapped into the later 4R100?

That won't work. The PCM will set a code, but even worse, as the PCM is trying to control a PWM solenoid the on/off isn't going to function. So I'd expect you would have no converter lockup.

It sounds like (other than the TCC question), you could drop any 4R100 into an older E4OD truck (given matching bellhousings) as a direct swap by simply abandoning the 2 extra speed sensors in-place.

That's correct.

How much work would it be to add those sensors? I ask cause I'd like to do the SD PCM mod but I have a John Wood built E40D so I don't want to replace it with a 4R100.

You'd need to change the internals to add the tone wheel for the two speed sensors, plus you would need to add bosses to the case and machine them for the proper alignment and distance from the tone wheel. They are very sensitive, if you're off more than a couple thousandths of in inch the sensors are not going to work. So really, no, it can't be done.

 

[Steve83]

Can the older On/Off solenoid be swapped into the later 4R100?

That won't work. The PCM will set a code...

I don't think I was clear. I meant: will the older solenoid "drop in" to the newer trans (as if a 4R100 was being installed into an '89 truck)? Is that all it would take to make the later trans work with the older EEC?

 

[Mark Kovalsky]

Yes, the older solenoid will drop into the newer trans. That's all it would take for the later trans to function with the older EEC. But to make the lockups work smoothly instead of SLAMMING on you also need to change a 0.250" hole to a 0.030" orifice in the pump body.

 

[Steve83]

Good to know. Thanks.

In your opinion, is the E4OD information at this link sufficiently-accurate & -complete for the typical Ford truck enthusiast?

 

[Mark Kovalsky]

Here is what it says at that link:

Electronic 4-speed Overdrive automatic transmission introduced in '89 based on the C6. Renamed 4R100 ~'99. One of the strongest, longest, & heaviest automatic transmissions ever put in a light truck. Models built before 1995 developed a poor reputation. One of the running changes around '95 was a PWM TCC solenoid to replace the earlier On-Off solenoid, and the corresponding orifice in the valve body changed from 0.250" to 0.030". This makes early & late E4ODs & their EECs/PCMs non-compatible without internal transmission mods.

There were changes in 1995, but it did NOT change to a PWM TCC solenoid. That happened in the late 1999 models. When that change happened the orifice, which is in the pump body, not the valve body, changed from 0.030" to 0.250", not the other way around.

If you make these changes it's accurate, but the way it's written it is just plain wrong.

 

[Steve83]

I've changed it, but I know I've read many times that there was some internal change around '95 that makes some Bronco E4ODs not compatible with some Bronco E4OD EECs. I only recently acquired an E4OD Bronco, so I didn't really pay attention before, but I thought it was the TCC.

BTW
Leaving that quote visible could cause confusion. I didn't put that text here because I suspected it would need to be changed.

 

[Mark Kovalsky]

There was a change to the location of the diodes in the shift solenoid circuits in '95. Pre-'95 EEC must be mated with pre-'95 solenoid bodies, and '95 and newer EEC must be mated to a '95 or later solenoid body. I have heard that there can be a mismatch in one direction. That will just produce redundant diodes, but I don't know which way that is.

 

[Steve83]

That must be what I read, then. Thanks again.