ok, got a '94 F250 2wd w/ a 7.3l and a bad E4OD in it. Too complicated of a gearbox to attempt a rebuilt in my opinion so have located an E4OD from a '92 F250 2wd & 7.3l so there should be no bolt up or controller issues but I am wondering what I am losing in the bargain? Everything I am reading says the E4ODs were constantly being improved each year since their introduction in 1989 and that one from a '92 would be better but not as good as those from '94. Seems like '95 was the year they got most of the upgrades done.

so with this all this taken into account, what will I give up if I were to use a 1992 transmission in my rig? is there anything I could do to the '92 trans which would make it close to as good as the '94? I do not want to do any disassembly of clutches, drums, etc.. but could make changes to the valve body if not too difficult or expensive. I do understand that I would want to use my 1994 solenoid pack. I would also consider a torque converter upgrade but again if not very costly. This is not a truck I intend to keep.

thnx go all in advance for the help and advice

 

If you don't plan on keeping the truck just swap the trans and go.

 

The trans are the same.It's the '89 you don't really want to mess with.The 90-94 are pretty much equal.Looks like the '89-'91 had apply lock up force issues but other than that,the early E4OD's are equal enough (save for a non rebuilt '89) that you can swap and go without thinking much.The odds are kinda high they were all reman at some point today,making them just about all at least '95 spec if the rebuilder was worth anything.If you find one from back in the day still working after all these years,then call that sucker a dang good trans and put it in your truck cus even the old legendary C6's have been rebuilt inside 25 plus years too.

 

so to just confirm that there would be no issues with a '94's TCU being connected to a '92 transmission (save the solenoid pack)? I know little to nothing about how these TCUs are programmed. They aren't programmed so that they will only work with a given transmission's serial number say like a PCU being programmed to a given trucks VIN?

 

There will be no issue. They are not programmed to individual transmissions or trucks.

 

Some of the changes were to the pump at the front, and the planetary gear sets changed from 3 pinion to 6 on the forward and reverse gear sets: The overdrive planetary went from three to four pinions as well... The input shaft also changed, as did the center support bearing. All easily upgraded in a rebuild.

Scott

 

Oh I'm sorry bud! I meant to correct you on this also this morning.I guess my coffee hadn't kicked in yet and I forgot after typing lol but you don't need to change your solenoid pack or anything.The 89-94 E4OD's are all direct replacement/bolt in to each other.
Edit;my bad that wasn't this morning,it was last night.hmm.What can I blame that on then? Long day at work?

People who have early E4OD's will have to research the speedometer thing though when they hunt for used trans,as I always forget when this changed.For a time the 2wd trucks had speedo ports in the E4OD's tailhousing,so if you need this,be sure it's there on the replacement trans.I want to say and I really probably shouldn't speculate cus I hate to start a flow of false info but if memory serves me right (and it probably doesn't! lol) but that was early '89 and '90 and maybe still '91????? though???? Someone else better help with this though.

Side info: Your '94 control unit is the best of the era to be used in all the 7.3l IDI trucks with E4OD's.Previous year (89-93) IDI/E4OD trucks should all be running these TECA units imo.So no,as Mark already stated anyway too; no issues there.Just the opposite in fact.

Your right Scott about these upgrades.Just mistaken about the year though.These upgrades you mention happened in '95.

 

[QUOTE=FORDF250HDXLT;18158137


Your right Scott about these upgrades.Just mistaken about the year though.These upgrades you mention happened in '95.[/QUOTE]

I didn't specify a year- I just know they happened- and I did all the mods when I rebuilt mine, as well... (Just put in a brand new Ford Motorcraft solenoid pack, too!)

Scott

 

Well,it's that this particular conversion is about the early E4OD's.His '92 in a '94 specifically and he wanted to know about any differences between these.Your definitely on the path to success to reman to '95+ spec.

 

I just need to get a decent torque converter. The one I got when I did the rebuild is disappointing, to say the least... I don't feel it is properly transferring the power- I have seen the tach hit a little over 3k before a shift recently... I am thinking one of the newer three clutch HD models... Any suggestions?

Scott

 

so I have the replacement transmission now and prepping it to install tomorrow with the obvious new filter and front seal but now I am wondering about the solenoid pack? Is the one from my '94 better in any way than the one from the '92 or needed to work with the '94's TCU? I assume these could be switched after the installation and road test even.

one thing is that I am taking this replacement transmission at face value as presented by the seller and installing it as I got it. the truck was a good driver at the time it was parted out but he does not recall miles since the donor truck is gone now. I assume also that there really is nothing I can do for an inspection before installation short of any fluid that comes out of it?

 

Either pack will work and may be the same.If you see an updated one with a hole at "EX" location use that instead,as it states it's better for longevity.That said,if neither of them have it,don't sweat it just use either.There are no wide spread reports of failures with any of them so.


There's not much you can do but hope you bought the trans from an honest seller to know if it works.Short of anything obvious in the pan of course.

 

This thread is a little old but it has the topic of the same trans I have.

i have a 97 F350 with a E40D. F350 has 4wd.

i found a 95 F150 parts truck with a E40D. The 150 is a 2wd.

1. Is the E40D compatible between a 1 ton and a 1/2 ton?

2. Secondly , if yes to #1 then I would need to swap out the rear/tailshaft housing to install in the 4WD.?

thank you.

Phil

 

Yes, if the transmissions were mated to the same engine.

Yes, you need to swap the rear housing. It's easy, it just unbolts and the 4x4 one bolts right on.

The hard part is that you also need to swap the output shafts. The 4x4 one is shorter and has different splines. To swap the output shafts, take EVERYTHING out of the transmission. The last part to come out is the old output shaft. Now install the 4x4 output shaft and reassemble the transmission.

 

In other words, it would be just as easy to reman your 4wd trans, than attempt to swap guts from a 2wd to a 4wd trans. A guy doing all that work, wouldn't swap in used guts of course. He'd use new.

There's one exception, but this doesn't apply to you Pip, that is for those with F-super duty (F450) trucks, OR while searching for a used trans. All these trucks, although they are all 2wd trucks (from the factory), they all have 4wd transmissions. So if you find one from one of these trucks, you can use it in your 4wd trucks (so long as it matches bolt pattern 460 to 460 gas/ or 7.3l diesel to 7.3l diesel (IDI to IDI or PSD to PSD OR swapping solenoid packs and converters to swap them between the 7.3l types. Pre '95 pack Aft '95 packs - 4 stud to 6 stud converters.)
You can spot one of these 2wd trucks with the 4wd trans, by the "F-super Duty" badges and 10 lug wheels. You'll see a driveline brake hooked to the back of it too. If that comes with it, don't toss it! Sell it.


You can use a 4wd trans in a 2wd truck also......But you'd have to add a t-case and change your rear driveshaft length......No you wouldn't have 4wd without a front axle too, but you'd have a set of low range gears to use!


---------

Caution: - This is probably not everything you need to know 4R100 in place of E4OD. Consider the info below a good overview/ primer for further research. I'm surprised I remembered this much haha. Please correct anything incorrect.

You can use the renamed E40D also; the 4R100. Treat it the same as the E4OD; gas to gas/ diesel to diesel/ 2wd to 2wd/ 4wd to 4wd or same as mentioned above; same bellhousing pattern, same as you would find a used E4OD in other words.
(these era of trucks, I don't know anything about the F450's and the trans they used. My guess is, a 2wd F450, might just have a 2wd trans at this point. I don't know.)

Just what you do with the 4R100 is, make sure to use your solenoid pack and converter where different (for example; 7.3l IDI) but you also need to take into account the pump operates differently. You need to use the E4OD pump OR; I think you might be able to use the 4R100 pump at least in the diesel trucks, so long as you used the Transgo 4R100-LU but I'm not sure if anything else is required. I personally would swap in reman E4OD pump.
You'll need to change shift levers and use your old range sensor, ignore a couple unused sensors...........and there might be more. You'd have to research this some more on your own. I don't recall if this is it or not but if there is, I don't seem to recall there being much more to it than this.



This is a nice little bolt on, addition to know also:





You upgrade (all you need is brake line) your cooling lines with this to 3/8 while adding this to your E4OD.