AOD or C6 or ?
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AOD or C6 or ?
I have a '65 Ford F100 with a 302 V8 (.030 over). Some modifications are a Crane Cam, Holley 570CFM, GT40 heads, Crane Energizer Roller Rockers, Keith Black pistons, FlowTech headers and FlowMaster 40 Series mufflers.
This truck currently has an FMX transmission with a 2000 stall.
I have been given an AOD transmission out of a '89 Mustang that had a 5.0 in it.
Will this work on my motor? If so can anyone tell me what all I'll need to do to make this change?
........or would a C6 or maybe C4 be a better choice?
Any and all suggestions would be greatly appreciated!
This truck currently has an FMX transmission with a 2000 stall.
I have been given an AOD transmission out of a '89 Mustang that had a 5.0 in it.
Will this work on my motor? If so can anyone tell me what all I'll need to do to make this change?
........or would a C6 or maybe C4 be a better choice?
Any and all suggestions would be greatly appreciated!
Postmaster
Joined: Nov 2001
Posts: 3,351
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From: Escondido, CA
The AOD is a better bet if your going for mileage. You can do a google search to see all the performance AOD's out there. Some places like broaderperformance.com even have a package you can buy and install with really good tech support.
Post Fiend
Joined: Apr 2006
Posts: 12,281
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From: Saskatoon Saskatchewan
Iam pretty sure that aod will bolt up to the 302 in your truck well for what choice what kind of driving do you do? city or highway mixed the aod would be good for highway cause you would have cruise and od does that matter much to have it? but the C6 wouldnt be that great for highway but they are bulittproof(strong) trannys
Posting Guru
Joined: Jul 2003
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From: Colville, Washington
The AOD will physically bolt to your 302 block, but you will need an adapter flexplate to match the AOD torque convertor to your early 302 balance factor(28.2 oz. versus 50 oz.). You would also need to figure out what is needed for the transmission mount and crossmember, it might be as easy as a couple holes and moving your crosmember on the frame or??? You will likely need to change your driveline somehow, I think the AOD is longer than the FMX. The AOD uses a throttle valve cable instead of a vacuum modulator and kickdown linkage, THAT CABLE MUST BE USED AND ADJUSTED CORRECTLY or the trans won't last long at all!!
The AOD will work for light duty useage, but don't expect to be hauling heavy loads.
The AOD will work for light duty useage, but don't expect to be hauling heavy loads.
Posting Guru
Joined: Jul 2003
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From: East Central Florida
Great Answer/Info Putt. . 
It's dead On,especially about difference in Static Balance criteria @ year of engine and the critical nature of the TVR Cable being right.
Be sure the torque converter housing is the right on for the engine also. I have seen them with additional windsor wieghts on them. . . . I don't know the listing on that, but someone may have it or have the explanation of it here. . . . If not get it from the A/T forum here at FTE.
I would add if you're going to "push the envelope" also use an atmosphere/ air cooler for ATF. The cooler ATF returns the better it runs & longer it lasts.
FBp
It's dead On,especially about difference in Static Balance criteria @ year of engine and the critical nature of the TVR Cable being right.
Be sure the torque converter housing is the right on for the engine also. I have seen them with additional windsor wieghts on them. . . . I don't know the listing on that, but someone may have it or have the explanation of it here. . . . If not get it from the A/T forum here at FTE.
I would add if you're going to "push the envelope" also use an atmosphere/ air cooler for ATF. The cooler ATF returns the better it runs & longer it lasts.
FBp
Junior User
Joined: Feb 2006
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From: ALABAMA
I would say with that kind of horsepower go with the C6. Dustin1960 is correct the C6 is a great trans. for all around use. The AOD trans. from what I know won't last long getting jerked around with that much horsepower. Just my thoughts.
Jason
Jason
Posting Guru
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From: East Central Florida
I run a Warmed 460 through a C-5 which is basically the front part of a 2nd generation A4OD FoMoCo AT. . . .
It doesn't break & I doubt any street 5.0L running a carb will generate anywhere near the torque of a built 460 at the 1/4 track.
The weak part of AOD is the Planetaries. If he races in OD he deserves to break it. As far as going down the road, the addition of an air cooler will keep the planetaries, aka OD section of the tranny comfortable. He should not have failure problems.
On the otherhand, C-6 has about 22% loss coefficient whereas smaller lighter built- easier running AOD has an 11% or 12% loss coefficient in the non OD range & 17% +/- in OD (at higher ground speeds of course) where the inertial loading is virtually gone.
What do you base your failure prediction on ?
If it was an early 1st generation AOD I might agree, but after 86 FoMoCo introduced their Generation 2 AOD (which is what he wants to use) he should be good to go.
FBp
It doesn't break & I doubt any street 5.0L running a carb will generate anywhere near the torque of a built 460 at the 1/4 track.
The weak part of AOD is the Planetaries. If he races in OD he deserves to break it. As far as going down the road, the addition of an air cooler will keep the planetaries, aka OD section of the tranny comfortable. He should not have failure problems.
On the otherhand, C-6 has about 22% loss coefficient whereas smaller lighter built- easier running AOD has an 11% or 12% loss coefficient in the non OD range & 17% +/- in OD (at higher ground speeds of course) where the inertial loading is virtually gone.
What do you base your failure prediction on ?
If it was an early 1st generation AOD I might agree, but after 86 FoMoCo introduced their Generation 2 AOD (which is what he wants to use) he should be good to go.
FBp
Last edited by FordBoypete; Oct 10, 2006 at 12:15 PM.
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Not much to be gained going from FMX to C6 anyway.
Go here for beef up goodies for the AOD. The TV cable thing is a BIG DEAL on the AOD so make sure it's right.
http://www.transmissioncenter.net/AOD.htm
http://www.becontrols.com/products/aodcat.htm
http://ckperformance.com/ford_aod.html
http://www.tciauto.com/Products/Ford/ford_aod.asp
Happy motoring!
Go here for beef up goodies for the AOD. The TV cable thing is a BIG DEAL on the AOD so make sure it's right.
http://www.transmissioncenter.net/AOD.htm
http://www.becontrols.com/products/aodcat.htm
http://ckperformance.com/ford_aod.html
http://www.tciauto.com/Products/Ford/ford_aod.asp
Happy motoring!
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Junior User
Joined: Feb 2006
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From: ALABAMA
I was just telling him that I have never had ANY luck with the AOD. I think they are junk for street racing or for pulling. I have had more AOD trans. replaced than any other trans. May be just bad luck for me...... That is what I base my failure prediction on.
Jason
Jason
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Joined: Jun 2003
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I believe the early flywheel will work. If the engine is an early engine, use the early flywheel. The difference in the flywheels between early and later (mid to late eighties, I think) is that the later is externally balanced.
An earlier AOD would be a better choice because it uses a T.V. rod instead of a cable, which would be easier to adapt to your application. You may want to look if there's an aftermarket kit (or factoryparts) to convert your cable to the rod.
An earlier AOD would be a better choice because it uses a T.V. rod instead of a cable, which would be easier to adapt to your application. You may want to look if there's an aftermarket kit (or factoryparts) to convert your cable to the rod.
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Funny you mention this.....
After just having rebuilt my motor FOR THE 2nd TIME!!!! (Which is getting dumped in today & came out sweeeet)....sorry I had to do that.
I decided that the C6 that I put in with my Dana 60 running 3.54's just wasnt cutting it with my choice of tires & distance driving.....
After thinking long & hard about the benefits of O.D.'s I decided to go with a "Dominator Jr." AOD tranny from
www.ford-aod.com
It is rated to 500hp & I will never even come close to that with my mildly built 352.............
The whole package came to $2700.00 with Tranny/Torque Converter/Flex Plate /Adaptor for 352 etc./Starter/Dip stick/Lokar Kickdown Cable (very important as stated in previous posts)/Carb mount/Tranny Cooler........AND $110.00 Credit on Shipping which brought to the shop door shipping to $65.00!
This will give me a .67 final drive on the tranny.........with my 3.54 gearing I should end up around 2.77 final on the rearend.
A vast improvement over running my motor at 3000 to 3500 when flying down the freeway.
Good luck as I am right there with you!
I decided that the C6 that I put in with my Dana 60 running 3.54's just wasnt cutting it with my choice of tires & distance driving.....
After thinking long & hard about the benefits of O.D.'s I decided to go with a "Dominator Jr." AOD tranny from
www.ford-aod.com
It is rated to 500hp & I will never even come close to that with my mildly built 352.............
The whole package came to $2700.00 with Tranny/Torque Converter/Flex Plate /Adaptor for 352 etc./Starter/Dip stick/Lokar Kickdown Cable (very important as stated in previous posts)/Carb mount/Tranny Cooler........AND $110.00 Credit on Shipping which brought to the shop door shipping to $65.00!
This will give me a .67 final drive on the tranny.........with my 3.54 gearing I should end up around 2.77 final on the rearend.
A vast improvement over running my motor at 3000 to 3500 when flying down the freeway.
Good luck as I am right there with you!
Posting Guru
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From: East Central Florida
I have an Aerostar XLTN Lwb 9 Pass Beater Van w/ 4.0L AWD and an A4OD that has 226,400+ Miles on it and all I ever do is change the Filter & ATF every 40K -50K. It still runs great. So does the engine. I am looking at my 2nd tune up soon on that, do one every 100K whether it needs it or not. . . .
I also have a 85 T-bird Elan with a generation 1 AOD that has 155+K on it, & my wife & daughter drove both these.
I have a friend that has an 03, Brand X, Silverado. He's on his 3rd AOD and coming up on 85K miles, so I guess some have better destiny than others.
Now the 3rd Gen', A4ODE from 95/ 96 up is a bad idea no matter who owns/ drives it.
Performance "re-Mans" that offer warranties stating power tolerance & milage can't be all that bad either. A lot of folks run them & run them Hard. . . .
FBp
I also have a 85 T-bird Elan with a generation 1 AOD that has 155+K on it, & my wife & daughter drove both these.
I have a friend that has an 03, Brand X, Silverado. He's on his 3rd AOD and coming up on 85K miles, so I guess some have better destiny than others.
Now the 3rd Gen', A4ODE from 95/ 96 up is a bad idea no matter who owns/ drives it.
Performance "re-Mans" that offer warranties stating power tolerance & milage can't be all that bad either. A lot of folks run them & run them Hard. . . .
FBp
Posting Guru
Joined: Nov 2000
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From: Illinois
A 3.54 rear gear using an AOD with .67 4th gear will give you a 3.54 final ratio.
There have been millions of Mustangs and Crown Vics with the AOD. They used them on full-sized trucks until around 1992. They aren't as fragile as has been suggested.
There have been millions of Mustangs and Crown Vics with the AOD. They used them on full-sized trucks until around 1992. They aren't as fragile as has been suggested.
Senior User
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Truckfarmer,Thanks for the detailed response on that one.
..
Correction, my C6 is 1:1 with my 3.54 rear end gears...
The A.O.D. is .67 in 4th.....
I know that rear end gearing will not physically change....but....
There was a calculator that I used online,that stated that my rearend would behave like a 2.77 geared rear end in 4th gear.
(It had a listing of all the different O.D. units available & I cant locate it for the life of me).
Which seems a little off I admit considering my RPM's will only drop by aproximately 900 @ 65 mph
Please,
if this incorrect...........put up the formula that gives all the aspects so I can do the math.
Thanks in advance.
..Correction, my C6 is 1:1 with my 3.54 rear end gears...
The A.O.D. is .67 in 4th.....
I know that rear end gearing will not physically change....but....
There was a calculator that I used online,that stated that my rearend would behave like a 2.77 geared rear end in 4th gear.
(It had a listing of all the different O.D. units available & I cant locate it for the life of me).
Which seems a little off I admit considering my RPM's will only drop by aproximately 900 @ 65 mph
Please,
if this incorrect...........put up the formula that gives all the aspects so I can do the math.
Thanks in advance.
Senior User
Joined: Jul 2004
Posts: 138
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found it.....
Here is something similair....
From the Gearvendors website.......
I am a little off as this is for a .78 Overdrive......But you get the idea...
Gearvendors
No matter how you slice it, if we are to drive these trucks on a daily basis an O.D. is the way to go. (At least in my case as I want the bulletproof Dana 60 to stay).
From the Gearvendors website.......
I am a little off as this is for a .78 Overdrive......But you get the idea...
Gearvendors
No matter how you slice it, if we are to drive these trucks on a daily basis an O.D. is the way to go. (At least in my case as I want the bulletproof Dana 60 to stay).