E4OD Trans filter
Logistics Pro
Joined: Aug 2014
Posts: 3,566
Likes: 852
Filter may be in place. Its easier to suck air through a bad seal than it is to pull fluid up from the bottom.
You have a bad seal, you stated you did not remove the old one.
People wonder why the have problems later, when the original problem is as small as this.
Lead Driver
Joined: Sep 2002
Posts: 9,548
Likes: 2,034
From: North Texas
Anyone ever around a Gen 3 or later GM truck knows the tired oring on the engine oil pickup tube causes low oil pressure.
Same will happen with the trans, low pressure equates to flaccid shifts and eventual failure due to fluid starvation. Hell, the filter may fall out.
Yes, order the retainer from Superior. It is a nice part
Same will happen with the trans, low pressure equates to flaccid shifts and eventual failure due to fluid starvation. Hell, the filter may fall out.
Yes, order the retainer from Superior. It is a nice part
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,730
Likes: 2,658
From: SE Florida
This is the part you're making up. Ford NEVER installed a permanent seal.
Fleet Owner
Joined: Jul 2006
Posts: 20,375
Likes: 841
From: Mi'kma'ki
All you have to do is think that one through. If they made a seal that wasn't replaceable (somehow) for the filter to pump seal, then that would just mean, the pump itself would need to be changed for another pump, or you would need to take it out and take it to a machine shop, so they could machine it to accept a replaceable seal for you, once the seal failed. That would be a horrible engineering mistake of course.
All you have to do is drop the pan and dig the old seal out. It may be hard but you'll see it wont be that hard to remove.
All you have to do is drop the pan and dig the old seal out. It may be hard but you'll see it wont be that hard to remove.
Thread Starter
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Mountain Pass
Joined: Jun 2008
Posts: 214
Likes: 1
From: Grain Valley, MO
Turn your E4OD over and this is what you'll see. It's not the seal from the filter it is part of the case, non-removable, part of the case casting and coated with an orange substance. The transmission guy I used in PA called it a "seal seat" for the lack of a proper term. When you push the filter into place it seats against this. I've done quite a few filter changes on these and never noticed this. Take a peek next time you're in there. You'll see it.
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Mountain Pass
Joined: Jun 2008
Posts: 214
Likes: 1
From: Grain Valley, MO
I ordered that retainer clip from Superior Transmission . It arrived in 3 days, installed yesterday.
What an easy way to ensure the filter cannot become unseated. Thanks, Torq'ta 5 8!
What an easy way to ensure the filter cannot become unseated. Thanks, Torq'ta 5 8!
Cargo Master
Joined: Mar 2007
Posts: 2,840
Likes: 1,033
Cargo Master
Joined: Mar 2007
Posts: 2,840
Likes: 1,033
I am not an E4OD expert, but I am, with the one I rebuilt. I had every piece apart, every bushing, valve, clutch, absolutely everything that can be removed/cleaned/disassembled. I swapped all kinds of parts to make my E4OD 'better'. With all that butchery, I had to figure out how to fit this puzzle back with new pieces. To date, it shifts really strong. That seal is not part of the case. Although I have seen really stupid ideas from manufacturers, why would the manufacturer have you replace the case to replace that seal?
All that said, for anyone that reads this, that rubber seal has never been a part of the case. EVER. As Hit Man X and Mark K previously mentioned above. The rubber seal is part of the transmission filter and when the filter is removed, the seal stays into the case. The seal must be removed before you install another filter [that comes with the orange seal]. Could you reuse the seal stuck in the case? Probably, but why would you?
There are many people that believe the world is flat too. It does not make them right. So, I will make my stand in the non believers camp. Those that will read this in the future can set up their camp wherever they want to.
All that said, for anyone that reads this, that rubber seal has never been a part of the case. EVER. As Hit Man X and Mark K previously mentioned above. The rubber seal is part of the transmission filter and when the filter is removed, the seal stays into the case. The seal must be removed before you install another filter [that comes with the orange seal]. Could you reuse the seal stuck in the case? Probably, but why would you?
There are many people that believe the world is flat too. It does not make them right. So, I will make my stand in the non believers camp. Those that will read this in the future can set up their camp wherever they want to.
Thread Starter
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Mountain Pass
Joined: Jun 2008
Posts: 214
Likes: 1
From: Grain Valley, MO
I hear you and have no doubt you did not see anything but the orange rubber seal that came with the filter. But I saw what I saw. However, after watching a multitude of videos and reading posts I'm thinking it's possible I may have a converted 2WD E40D in my 1996 Eddie Bower 4WD F150. I say this for 2 basic reasons. First, the pan depth at the sump is 4.5 inches and the videos show pans that seem at least an inch deeper. Second, the dipstick on mine is shorter without the plastic end also shown. It's a basic steel dipstick.
Is it possible to convert a 2WD trans to one for a 4WD truck simply by changing the tailpiece to one that mated to a transfer case?
I'm not considering the linkage on manual 4WD nor the control and cabling for electronic 4WD shifters or the dipstick and tube. I'm asking about the mechanics of it only.
Is it possible to convert a 2WD trans to one for a 4WD truck simply by changing the tailpiece to one that mated to a transfer case?
I'm not considering the linkage on manual 4WD nor the control and cabling for electronic 4WD shifters or the dipstick and tube. I'm asking about the mechanics of it only.
Last edited by jcee; Nov 16, 2025 at 11:52 AM.