eod4 vs 4r100
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6th Gear
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eod4 vs 4r100
I am fairly new to working on my on vehicles, especially my 1994 f150 which I bought myself recently, I was shopping around for transmissions and was wondering if I'd be able to use a 4r100 with a junkyard/reman 5.0? I've read around that some things may need to be adapted but everywhere I look its different. Just some advise for a novice 
Frmr Ford Trans Engr
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From: SE Florida
You'll need an adapter made because the 4R100 never mated to the small block. Also, you'll need to change the solenoid body and make some orifice changes in the pump body. It's possible, but I'll bet you could buy three or four E4ODs for what it would cost to make a 4R100 work.
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6th Gear
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Well my plan as of now was to take the current engine and trans out of it, put in the reman 5.0 and EO4D and tear down the current engine and build it, heads, cam, injectors, etc. That's the reason I was asking about the 4r100, I know it can handle the extra stress of torque and horse.
Cargo Master
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If you spend enough time researching the E4OD, you may have the skills to rebuild the transmission yourself. There are plenty of sites and videos that show how to take them apart. Some of the are really really boring [Transmission Bench] but if you can stay away, you will see, it's not that hard.
Many of the early transmissions failed but Ford updated/upgraded those part. Many of them just swap right out.
My experience is with Mercedes transmissions and when I did my E4OD, I took my time and was successful when I was done. I purchased a core transmission and rebuilt that.
Many of the early transmissions failed but Ford updated/upgraded those part. Many of them just swap right out.
My experience is with Mercedes transmissions and when I did my E4OD, I took my time and was successful when I was done. I purchased a core transmission and rebuilt that.
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6th Gear
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I would like to rebuild the transmission myself yes, but my main goal is getting the truck driving. When I have the time to rebuild it I will and then I have a backup worst case.
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Cargo Master
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That is why I bought a core to rebuild. Fortunately the core was fairly good. I took my time buying all the upgraded parts. Took my time to machine parts to fit [extra clutches]. Took my time to gather enough money to make this work. In the end, I got the original transmission [nothing really wrong with it] set aside as to install if I have a problem with the one I rebuilt. I use my truck to tow my 5th wheel.
Lots of the diesel parts will fit. Lots of diesel gears are a bit stronger than what was installed in a small block version transmission.
Lots of the diesel parts will fit. Lots of diesel gears are a bit stronger than what was installed in a small block version transmission.
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Hotshot
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I have no experience with their E4OD rebuilds but the A4LD I bought from PATC for the Bronco II has been great.
If you could buy a junkyard E4OD transmission for not much money to rebuild yourself would be a good way to go. That is if you have the tools and time to do that in case your first try at a rebuild doesn’t work. I assume you have determined that the current transmission has a too many miles to be trusted or has failed mechanically to keep using it?
If you could buy a junkyard E4OD transmission for not much money to rebuild yourself would be a good way to go. That is if you have the tools and time to do that in case your first try at a rebuild doesn’t work. I assume you have determined that the current transmission has a too many miles to be trusted or has failed mechanically to keep using it?
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6th Gear
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I have no experience with their E4OD rebuilds but the A4LD I bought from PATC for the Bronco II has been great.
If you could buy a junkyard E4OD transmission for not much money to rebuild yourself would be a good way to go. That is if you have the tools and time to do that in case your first try at a rebuild doesn’t work. I assume you have determined that the current transmission has a too many miles to be trusted or has failed mechanically to keep using it?
If you could buy a junkyard E4OD transmission for not much money to rebuild yourself would be a good way to go. That is if you have the tools and time to do that in case your first try at a rebuild doesn’t work. I assume you have determined that the current transmission has a too many miles to be trusted or has failed mechanically to keep using it?
Hotshot
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The “transmission needs a linkage for drive”? What does that mean? How are you driving it if the shifter cable is missing?
So you are going to buy an engine and transmission to use while you rebuild the old engine and transmission? Then what? Sell the reman engine and trans and try to get some money back? That plan sounds extremely expensive and time consuming. With that many miles I doubt you will be able to do a backyard rebuild without needing some machine work done to the block.
So you are going to buy an engine and transmission to use while you rebuild the old engine and transmission? Then what? Sell the reman engine and trans and try to get some money back? That plan sounds extremely expensive and time consuming. With that many miles I doubt you will be able to do a backyard rebuild without needing some machine work done to the block.
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6th Gear
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The “transmission needs a linkage for drive”? What does that mean? How are you driving it if the shifter cable is missing?
So you are going to buy an engine and transmission to use while you rebuild the old engine and transmission? Then what? Sell the reman engine and trans and try to get some money back? That plan sounds extremely expensive and time consuming. With that many miles I doubt you will be able to do a backyard rebuild without needing some machine work done to the block.
So you are going to buy an engine and transmission to use while you rebuild the old engine and transmission? Then what? Sell the reman engine and trans and try to get some money back? That plan sounds extremely expensive and time consuming. With that many miles I doubt you will be able to do a backyard rebuild without needing some machine work done to the block.
Last edited by gh05tryder; Mar 4, 2024 at 05:52 PM. Reason: Additional context
Mountain Pass
Joined: Apr 2021
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You'll need an adapter made because the 4R100 never mated to the small block. Also, you'll need to change the solenoid body and make some orifice changes in the pump body. It's possible, but I'll bet you could buy three or four E4ODs for what it would cost to make a 4R100 work.
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