Swap to OD, Info requested...

[sdstriper]

I am looking to educate myself on the Ford overdrive transmissions that will work in place of my C6... I know absolutely nothing about the Ford OD transmissions. I am not a stranger to the wrench though... I have successfully rebuilt a few Chrysler transmissions in the past. Once I figure out which trans. is my best choice I will be purchasing the ATSG manual and looking for one to swap in. What can you folks tell me with the limited info I have given so far?

 

[sdstriper]

351w is correct. I would like to know what automatic OD came in the full size broncos? Were they electric control etc.? Do I have any option for manual control, no PCM necessary etc.? Are they lockup converter? Anyone swap an OD in place of their C6? Shorten driveshafts or get them from the donor vehicle? Many questions I know... I better get to searching...

On the Dodge you can control OD and LU without a PCM/ECM if you choose the correct year transmission build. I'm looking for something similar in the Ford flavor... If not I'll deal with it.

 

[sdstriper]

So I am looking for AOD... This is the trans. behind the 5.0 FSB's huh? Driveshafts would work I assume? Anyone?

Is the AOD a lockup torque converter transmission?

 

[miesk5]

yo,

The term "lock-up" will stir da bees in many forums concenring the AOD. mainly bec. many say a lock-up can only be controlled by a PCM...eec..etc.

But I'll say itsa lock-up because of what Jim writes at Hemmings; http://www.hemmings.com/mus/stories/2006/0...n_feature5.html

"The AOD was used originally on '80s and early-'90s Ford, Lincoln and Mercury products and in the F-series pickups and E-series vans as well. The AOD can be a relatively easy transmission to transplant and the additional 4th-gear overdrive can give you added fuel savings, especially in cars and trucks using taller rear axle ratios. Because Ford used these transmissions in so many production vehicles, the Ford AOD is relatively easy to locate at a used parts yard and can be purchased for a reasonable price. The Ford AOD does not need a computer to function properly either. The throttle valve function is mechanically activated and the torque converter lock-up function was contained entirely within the transmission case. Ford later used this transmission as a basis for their newer overdrive transmissions, the electronic overdriven AOD-E, which was used beginning in 1993 and in the 4R70W which was used on '99 and up production cars and trucks..."

 

[sdstriper]

Now this is good info, Thanks! Hydraulic control LU converter, that's what I am looking for. OD and LU converter are huge, if your going to swap for one you just as well shoot for both IMO. As far as driveshafts go, I would certainly rather get them from a donor, plug and play so-to-speak than have to pay someone to shorten them. That's why I asked, make things easier and cheaper.