New carb AOD transmission TV connection

[Gary Lewis]

Leave it to me to get an oddball combo 😂. I picked this rig up because I wanted a new project and I've always liked the bullnose body style. So far I like the body style and the engine block 😂 and that's it haha.

Yes I'm pretty well resolved to doing a rebuild on the carb I've got. Me not knowing anything about Ford's, I now see that this feedback carb will work, even though I'm not using the feedback ignition. That way I don't risk messing up the trans.

So excuse my ignorance again here, but before I just order a rebuild kit, does anyone know if the feedback carb is the "YFA" carb?

 

I think it is fair to say that a feedback carb is a YFA, but not all YFA's are feedback carbs.

[Mark]

I think it is fair to say that a feedback carb is a YFA, but not all YFA's are feedback carbs.

Got ya. I sure appreciate you guys help, hopefully I can return the favor at some point. I'm trying to search out for answers thoroughly before asking.

Thank y'all.

[Gary Lewis]

Got ya. I sure appreciate you guys help, hopefully I can return the favor at some point. I'm trying to search out for answers thoroughly before asking.

Thank y'all.

Good luck!

[Mark]

Good luck!

So this morning I tore the factory carburetor down, and the whole time the cheap knock off was sitting on my bench and I swear I was hearing it saying nah nah nah boo boo. All high and mighty like. The more of the soon to be abandoned feedback parts I removed the more I noticed the two basically looked the same with the exception of the baseplate that included the pesky ball connector for the pesky AOD transmission (why ford? Why did you build this combination) and that's when I abandoned all good sense. I decided to just eat the low budget carb and see just how it was different. In comparison, side by side, the only difference I could see was A. The aforementioned ball connector on the linkage of the Carter factory unit and where one one of the electronic items mounted there appears to be additional channels. I'll include Pictures to better explain. So with both units completely taken apart my first thought was to see about marrying the two units essentially Frankensteining them to create what I needed.

Will it work? I honestly don't see why not. In my years of turning wrenches I've done things equally as wild. And if not I've not really lost anything except the cost of the knock off carb, but the lesson is worth that cost for me.

I'll be the first to admit I am not a fan of using the cheap knock off parts, but if it works in the end 🤷

Here's some pictures.

[85lebaront2]

So this morning I tore the factory carburetor down, and the whole time the cheap knock off was sitting on my bench and I swear I was hearing it saying nah nah nah boo boo. All high and mighty like. The more of the soon to be abandoned feedback parts I removed the more I noticed the two basically looked the same with the exception of the baseplate that included the pesky ball connector for the pesky AOD transmission (why ford? Why did you build this combination) and that's when I abandoned all good sense. I decided to just eat the low budget carb and see just how it was different. In comparison, side by side, the only difference I could see was A. The aforementioned ball connector on the linkage of the Carter factory unit and where one one of the electronic items mounted there appears to be additional channels. I'll include Pictures to better explain. So with both units completely taken apart my first thought was to see about marrying the two units essentially Frankensteining them to create what I needed.

Will it work? I honestly don't see why not. In my years of turning wrenches I've done things equally as wild. And if not I've not really lost anything except the cost of the knock off carb, but the lesson is worth that cost for me.

I'll be the first to admit I am not a fan of using the cheap knock off parts, but if it works in the end 🤷

Here's some pictures.

I would simply try the throttle body from your original carburetor on the upper 2/3 of the Chineseum one. Or if you feel you can get the throttle plate screws out, swapping only the actual throttle shaft only into the Chineseum one.

[Mark]

I would simply try the throttle body from your original carburetor on the upper 2/3 of the Chineseum one. Or if you feel you can get the throttle plate screws out, swapping only the actual throttle shaft only into the Chineseum one.

I thought about just swapping the plate onto the clone, aaaaaand this is still just mocked up for fit, so I still may. I'm going to disassemble it tomorrow and clean and start towards the finish project. My thinking with using the original float bowl side was I trusted the mechanics of it more than the clone. All I intend to use off the clone will be the top end housing. That said I'm not completely done just yet, but I think I'm heading in the right direction.

[LARIAT 85]

I just noticed you have a rare beast, 300 with an AOD. I would definitely be very careful as the AOD/300 combination is a bit fragile due to the torque of the 300. Ford only used the AOD in the trucks for a short time replacing it with the E4OD after EFI and the E4OD became available, same reason the C4 was short lived and switched to the C6. In cars the AOD was used behind the 351W for a few years.

That is a myth that just won't die. The 5.0/302 V8 actually produces more torque than the 4.9/300 six.

The AOD was used in the F-Series trucks from 1980 all the way up to 1993.

[85lebaront2]

I just noticed you have a rare beast, 300 with an AOD. I would definitely be very careful as the AOD/300 combination is a bit fragile due to the torque of the 300. Ford only used the AOD in the trucks for a short time replacing it with the E4OD after EFI and the E4OD became available, same reason the C4 was short lived and switched to the C6. In cars the AOD was used behind the 351W for a few years.

That is a myth that just won't die. The 5.0/302 V8 actually produces more torque than the 4.9/300 six.

The AOD was used in the F-Series trucks from 1980 all the way up to 1993.

More torque at what rpm? the 300 is a low end torque engine and yes, at higher rpm the 302 probably does make more torque. If you look at several items on the transmissions you will see that on a C4, the 2nd gear servo for the 300 is the largest one that fit in the case, band is wider and there are more clutch discs in the forward and reverse/high clutch than any V8 application.

I don't have the parts breakdown on the AOD, but used the 300 stuff to build a killer C4 back in 1967 for my 1964 Falcon with a 260 V8, 10.5:1 compression, Lunati Hydraulic cam equivalent to the HyPo 289 cam. 1 - 2 shift at part throttle was essentially instantaneous and would chirp the tires. WOT was very solid as was 2 - 3.

Also, if torque wasn't the issue, why did Ford change to using the C6 and E4OD in place of the C4 and AOD, it sure wasn't for fuel economy as the internal drag of both are more than the C4 or AOD.

[Gary Lewis]

More torque at what rpm? the 300 is a low end torque engine and yes, at higher rpm the 302 probably does make more torque. If you look at several items on the transmissions you will see that on a C4, the 2nd gear servo for the 300 is the largest one that fit in the case, band is wider and there are more clutch discs in the forward and reverse/high clutch than any V8 application.

I don't have the parts breakdown on the AOD, but used the 300 stuff to build a killer C4 back in 1967 for my 1964 Falcon with a 260 V8, 10.5:1 compression, Lunati Hydraulic cam equivalent to the HyPo 289 cam. 1 - 2 shift at part throttle was essentially instantaneous and would chirp the tires. WOT was very solid as was 2 - 3.

Also, if torque wasn't the issue, why did Ford change to using the C6 and E4OD in place of the C4 and AOD, it sure wasn't for fuel economy as the internal drag of both are more than the C4 or AOD.

Maybe I can help. Here are spec's from Ford's 1982 dealer facts book. You can find this info on the pages in the Documentation/Engine section.

First, the 4.9L specs:

And the 5.0L specs:

[LARIAT 85]

Maybe I can help. Here are spec's from Ford's 1982 dealer facts book. You can find this info on the pages in the Documentation/Engine section.

First, the 4.9L specs:

And the 5.0L specs:

I don't think the AOD was available behind the 300 in 1982.

The 5.0/302 made 285 lb-ft torque starting in 1985, compared to the 250 lb-ft of the 4.9/300.