C6 to AOD or E4OD
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Freshman User
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From: Green Country
C6 to AOD or E4OD
I have searched this forum for info. on swapping a c6 to either an AOD or a E40D, and I cant seem to find a thread with all the information needed to do the conversion. I have an 88' F150 2WD 5.8 with a C6. I bought a 96 f150 5.0 2wd that had some wiring burn up. I am not sure if it has an AOD or a E40D. I didnt get a chance to check the door when I looked at it. The truck will be towed to me in a week and I would like to start gathering parts to do the swap. Anyone have any advice?
Postmaster
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From: Sweetwater Texas
If you plan on any heavy pulling or hauling/abuse you better for an E40D.
But anywho, they bellhousings are the same on a 302 as a 351W so that won't be a problem. I've never done this swap before, but were the 88 351's fuel injected yet?
The C6 is a mechanically controlled transmission, as the E4OD is all electronic, so you will need a tranny computer if you're wanting an E4OD, not sure about the AOD, cuz I've never been around one. Part you may need I'm not for sure tho, would be to measure driveshafts because the C6 MAY be shorter. Wiring harness to control it, new speedo sensor.
I'm sorry I can't be of much more help
But anywho, they bellhousings are the same on a 302 as a 351W so that won't be a problem. I've never done this swap before, but were the 88 351's fuel injected yet?
The C6 is a mechanically controlled transmission, as the E4OD is all electronic, so you will need a tranny computer if you're wanting an E4OD, not sure about the AOD, cuz I've never been around one. Part you may need I'm not for sure tho, would be to measure driveshafts because the C6 MAY be shorter. Wiring harness to control it, new speedo sensor.
I'm sorry I can't be of much more help
Posting Guru
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the aod doesn't need a computer but if i could trade my aod for a c6 i would definatly take that trade
a c6 is much stronger than an AOD i've never played with an E4OD so i don't know how strong that is but i have a c6 behind my 600hp nitrous bigblock in my 4200lb thunderbird and it's practically stock with no problems at all (has a 2800 converter new clutches R-code servo and a valvebody)
a c6 is much stronger than an AOD i've never played with an E4OD so i don't know how strong that is but i have a c6 behind my 600hp nitrous bigblock in my 4200lb thunderbird and it's practically stock with no problems at all (has a 2800 converter new clutches R-code servo and a valvebody)
Postmaster
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From: Sweetwater Texas
E4OD's can be very strong, they are behind 7.3 IDI's and an upgraded version behind the 7.3 Powerstroke along with it being behind the 460's.
But I don't think any auto is as strong as the C6. (within limits here)
But I don't think any auto is as strong as the C6. (within limits here)
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You can use this to determine what box is in that '96. 4R70W maybe, E4OD maybe...
https://www.ford-trucks.com/article/...ers_Guide.html
Trans controllers:
E4OD and 4R100E Performance Products
https://www.ford-trucks.com/article/...ers_Guide.html
Trans controllers:
E4OD and 4R100E Performance Products
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From: Green Country
Got it
Alright. I got the donor truck, and found it is a E40D. Seems like a lot more work with the electronics and such. My question to all of you with the experience is, would it be worth it to convert to the E4OD or just go with an AOD. I can trade for a AOD from a friend of mine. Thanks.
Posting Guru
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The AOD is not nearly as strong as the C6, C6 to AOD is a downgrade in my book. The E4OD can be built pretty strong and the later model ones like the '96 you have are pretty good from the factory. If you must have overdrive, go with the E4OD.
The E4OD is longer than the C6, so you WILL need a shorter drive shaft. If the '96 parts truck you have is the same cab and bed configuration as the '88 you can probably use the driveshaft out of the '96.
You will not be able to use the computer out of the '96 in your '88 because the '96 is OBD II and the '88 is OBD I. You will need a computer out of an '95 or earlier E4OD truck.
The E4OD is longer than the C6, so you WILL need a shorter drive shaft. If the '96 parts truck you have is the same cab and bed configuration as the '88 you can probably use the driveshaft out of the '96.
You will not be able to use the computer out of the '96 in your '88 because the '96 is OBD II and the '88 is OBD I. You will need a computer out of an '95 or earlier E4OD truck.
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From: Green Country
I think I will go with the AOD, and see what happens. I will always have the trusty C6 in the garage when I need it. I dont really plan on towing or hauling anything heavy. I do a lot of highway driving and that extra gear will be nice. Thanks for the advice.
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Before you invest time and money: the best are from '88-'93, and from behind a V8 car or truck, or 6 or V8 truck. Read the background and update propaganda here before you slap in an AOD. Get the wrong one and you'll be doing double work....
An Introduction to the Ford AOD-E/4R70W and AOD Automatic Transmissions - Baumann Electronic Controls, LLC
TCI - Ford AOD, AODE and 4R70W
AOD Transmission from PATC, AOD Transmissions
The '88 & up boxes corrected some problems in early units, so that's the reason for that suggestion, and a little extra beef seems to be available in some of the kits.
Good luck with it.
An Introduction to the Ford AOD-E/4R70W and AOD Automatic Transmissions - Baumann Electronic Controls, LLC
TCI - Ford AOD, AODE and 4R70W
AOD Transmission from PATC, AOD Transmissions
The '88 & up boxes corrected some problems in early units, so that's the reason for that suggestion, and a little extra beef seems to be available in some of the kits.
Good luck with it.
FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
Put a shift kit in whatever AOD you get and it'll be fine, just make double sure you get a 28oz AOD flexplate. If you use the 50oz 5.0 flexplate you'll have a vibration problem and if you use the C6 flexplate that's on the 5.8 right now the AOD won't last more than a few minutes.
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From: Green Country
Thanks Conanski. What fords have the 28oz flexplate?
Also I was wondering how I can figure out what my ratio is. I tried a few VIN decoders but they show the truck to be a 1992, and none of them show the rear axle ratio. I may have written the number down wrong. The ratio in my truck seems high to me. I used to have a truck with 3.73's and it felt way lower than my ratio does now. The sticker in the drivers side door is missing, so no help there.
Also I was wondering how I can figure out what my ratio is. I tried a few VIN decoders but they show the truck to be a 1992, and none of them show the rear axle ratio. I may have written the number down wrong. The ratio in my truck seems high to me. I used to have a truck with 3.73's and it felt way lower than my ratio does now. The sticker in the drivers side door is missing, so no help there.
Postmaster
Joined: Jun 2007
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From: Sweetwater Texas
2 ways to figure out the ratio. The first is to find the ID tag on the rear end if it will tell you if it says 355ls, then its a limited slip 3.55 etc.. etc..
The other less precise way is to take and mark with chaulk the drive shaft and tire, and jack the truck up and turn a tire and count how many times the drive shaft turns to one complete turn of the tire. If the shaft turns roughly 3 and a half turns to 1 turn of the tire, then its a 3.55
The other less precise way is to take and mark with chaulk the drive shaft and tire, and jack the truck up and turn a tire and count how many times the drive shaft turns to one complete turn of the tire. If the shaft turns roughly 3 and a half turns to 1 turn of the tire, then its a 3.55
FTE Legend
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From: Ottawa, Ontario
All 351 motors had a 28oz flexplate, you need one from a late '80's Crown Vic that had a 351. The chances of finding one of those that doesn't have the ring gear chewed up is slim so you might as well buy a new one.