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Old 04-29-2007, 05:33 PM
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need help with ford AOD information

I bought a 1985 ford van with a 302 and C-6 (I thought) the pan has 14 bolts everything I find tells me it's an AOD but it is only a 3 speed and I thought all AOD were 4 speed. Issue is I bought a B&M Z-Gate shifter and now I'm lost as to what to do. Is there such thing as a 3 speed AOD? In the van it reads P R [D] D 1 and the van has a tag that says overdrive. help a n00b out please. I put the engine and tranny in my 68 Galaxie replacing the 3 speed with an automatic.

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Old 04-29-2007, 11:56 PM
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Quote:
Originally Posted by n00b

I bought a 1985 ford van with a 302 and C-6 (I thought) the pan has 14 bolts everything I find tells me it's an AOD but it is only a 3 speed and I thought all AOD were 4 speed. Issue is I bought a B&M Z-Gate shifter and now I'm lost as to what to do. Is there such thing as a 3 speed AOD? In the van it reads P R [D] D 1 and the van has a tag that says overdrive. help a n00b out please. I put the engine and tranny in my 68 Galaxie replacing the 3 speed with an automatic.
It's an AOD. The selector pattern should read P-R-D (in a circle)-D (this postion will be third/direct)-1 (this position will be low and second can be derived from it).

The pre-88 AOD had design problems. It doesn't go into OD?
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Old 04-30-2007, 01:09 AM
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Ford AOD

DO NOT DRIVE that car until you get the kickdown linkage set up! AOD's improperly adjusted will disintegrate PDQ as will most OD trannys.You may have to get a Lokar kickdown cable since you put it in a pre-AOD car,you can do an adjustment off the directions,but then get to a tranny shop ASAP and have them complete it, it is critical that the line pressure is right on.For more info I suggest this website www.becontrols.com/tech Oh,more bad news ! B&M Z-gates are not AOD compatable you should contact B&M's tech folks to help you with that .

Last edited by JeffB; 04-30-2007 at 01:14 AM.
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Old 04-30-2007, 06:46 PM
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JeffB's right a Z gate won't work, the detents and travel are not compatible with the AOD. I run a BM Quicksilver in my and AOD and they are compatible, if you want the shifter allows you to shift by rowing the from 1 to D to go up through gears. The AOD has 3 speeds and lockup 1:1 which is considered the OD and will only get there in [D]. Summit's website will sort the BM shifters they carry that work with AODs
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Old 04-30-2007, 07:40 PM
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Quote:
Originally Posted by phitchco
JeffB's right a Z gate won't work, the detents and travel are not compatible with the AOD. I run a BM Quicksilver in my and AOD and they are compatible, if you want the shifter allows you to shift by rowing the from 1 to D to go up through gears. The AOD has 3 speeds and lockup 1:1 which is considered the OD and will only get there in [D]. Summit's website will sort the BM shifters they carry that work with AODs

I hate to disagree, but will:

The AOD has 4 speeds.

The AOD will shift 3 times; 1-2 , 2-3 then 3-4 (OD)

The AOD ; when the shift to 3rd gear happens , you are at a 1-1 ratio and lock up. I explain below

There are 3 splined shafts out of the pump. Outer splines is the support for the stator in the converter.

Middle shaft is for input to the forward clutch drum.

Inner shaft is the link to the direct clutch from a spring loaded hub inside the converter. This is a 1-1 drive to the 3rd gear clutch drum

Some converter companys offer a modified converter turbine hub where the shaft to 3rd gear is driven off the turbine hub and does not provide a 1-1 hook up with the engine.
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Old 04-30-2007, 08:00 PM
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When you swapped the engine/transmission, did you keep everythng the same? Does it have a carburator? If so, your TV cable should be there and simply be reused.

As far as the shifter yes, Ford only used three detents for a four speed auto.

Heres's another valuable resource:

AOD
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Old 04-30-2007, 08:38 PM
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Quote:
Originally Posted by Crosley
I hate to disagree, but will:

The AOD has 4 speeds.

The AOD will shift 3 times; 1-2 , 2-3 then 3-4 (OD)

The AOD ; when the shift to 3rd gear happens , you are at a 1-1 ratio and lock up. I explain below

There are 3 splined shafts out of the pump. Outer splines is the support for the stator in the converter.

Middle shaft is for input to the forward clutch drum.

Inner shaft is the link to the direct clutch from a spring loaded hub inside the converter. This is a 1-1 drive to the 3rd gear clutch drum

Some converter companys offer a modified converter turbine hub where the shaft to 3rd gear is driven off the turbine hub and does not provide a 1-1 hook up with the engine.
Sure enough the service manual does describe 4th as the overdrive with 2/3 ratio and 3rd being the 1:1. I always thought the OD was the 1:1.

well how about that, now I know.
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