Ford AOD Non Electronic Transmissions

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6 Shooter
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Ford AOD Non Electronic Transmissions

Post #1 by 6 Shooter » Sat Jan 06, 2018 9:59 am

Question? Are V8 and I6 aod transmissions the same one used in f150’s and e150’s? Do V8 and I6 tranny’s use the same torque converter and block to tranny spacer, ie. thickness? I know the flexplates are different. I can find V8 aod’s all day long but not I6’s. I would also assume this would apply to C4,5 & 6 transmissions also for V8 to I6 interchange. I know they all bolt up but may use different TC and block to tranny spacer. Thanks. The current project is a 1980 Econoline conversion van being repowered with a Ford 300 from a 351W and C6 transmission. Have a 1985 300 with a C4 or 5 out of a f150 for the motor and going with the Offy C and 2100 carb. Looking to max out the MPG with the AOD tranny.

chero1369
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Re: Ford AOD Non Electronic Transmissions

Post #2 by chero1369 » Sun Jan 07, 2018 2:59 pm

When I put an AOD in a 63 van with a 250,had to redrill flexplate.
behind a big 6,not a concern. however,change the starter,different teeth.
We tried to use the old TV cable.due to the adjustment of said cable being off,had to rebuild trans.
A lokar cable and a different valve body from broader performance gave us enough time and distance to properly adjust linkage.
That stock adjustment is real tricky and unless you put serious cash into the trans to fix factory weaknesses,they tend to handgrenade.
sounds like you have a good plan,go for it.

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Shorty
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Re: Ford AOD Non Electronic Transmissions

Post #3 by Shorty » Mon Jan 08, 2018 10:44 pm

Just a thought: why not use the c6 that is already in the van which is virtually indestructible and re gear the rear for fuel economy? I have used c6 trannies behind a L6 that were originally behind a 351 windsor (including the TC)
Or for best mpg convert to manual with a five speed.
85 F150 on 78 bronco frame C6 np205 welded dana44 front, trussed posi nine inch rear. EFI exhaust manifolds into one 2 1/2" rolls on 35x12.5x15 Maxxis Trepador.

6 Shooter
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Re: Ford AOD Non Electronic Transmissions

Post #4 by 6 Shooter » Sat Jan 20, 2018 10:06 pm

I thought about using the C6 but it will take away HP and affects the mpg. I also thought about using the C4 that came with the I6, get it rebuilt and beef it up, being lighter and having less parasitic drag than the C6. Also thought about the 5 speed, actually found one but that got vetoed by the wife since she is going to drive the van also even though she can drive a stick. I was told the van was getting 15 mpg with the 351 and C6 combo. Shooting for 18-20 anything above 20 would be a bonus but I think it is a stretch. From everything I’ve read it seems like the extra half gear in the AOD gets you the 3-5 mpg extra. What ever transmission we used I’ll then plug into the ratio calculator with the rear end and make the final ratio adjustment with the tire size. Does anyone know the rpm happy spot for the i6 to give you the best mpg? If I were to end up using the AOD I would get it rebuilt also, to eliminate the short comings of the tranny.

Lazy JW
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Re: Ford AOD Non Electronic Transmissions

Post #5 by Lazy JW » Mon Jan 29, 2018 1:50 pm

A stock 300 will need to be turning about 1500 rpm max at flat ground highway cruise in top gear to get best mpg. It will feel like a real dog, but you can always downshift.
"The White OX" 1974 F-350 300-6, Stock single exhaust, Carter YF, T-18A, Dana70 w/4.11, Flatbed dually w/dump bed. "Where no oxen are, the crib is clean, but much increase is by the strength of the ox" (Proverbs 14:4)
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