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Old 11-15-2002, 07:24 PM   #1
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Carb + AOD = kickdown cable mess

Will a kickdown cable from a carb'd 80-85 Stang work? Or is it more complicated than that? The carb is a 600cfm Carter with Chevy linkage.


Should I just convert to a manual valve body? How hard/expensive is that?
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Old 11-15-2002, 08:29 PM   #2
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AOD carb link

There were a number of cars and light
trucks made w/AODs and carbs - check
junkyard - you'll have to look at the link
hookup on your specific carb, otherwise
you'd have all the arms etc. Cable from
efi car won't work w/o major adapting.
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Old 11-15-2002, 08:29 PM   #3
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In case you didn't already know this...

"If you have a manual transmission you have nothing to worry about. However, if you have an AOD automatic you need a TV (throttle valve) cable. You can purchase this from Lokar Performance (NOTE: this is the same cable that Windsor-Fox Performance carries except $25 cheaper from Lokar direct). Setup is critical so follow the instructions included closely. Setting up the cable wrong will lead to a burned up transmission in very short order."

Change up the carb linkage to a ford style, then you can use the factory linkage for a kickdown. I believe E-Brock makes an adaptor you can order from summit if you chose that route!
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Old 11-15-2002, 08:30 PM   #4
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You will need the Lokar cable set-up.

Ford AOD
KD-2AODHT
You can probably order through www.ramchargers.com or www.summitracing.com

P.S. Do not drive it without the kickdown cable. It will burn the tranny up in no time.
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Old 11-15-2002, 08:39 PM   #5
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I already know about the lokar kit...thats alot more than Im gonna pay.


Did Mustangs carb'd mustang come with AOD trannys? Cause I can probaly get a kickdown cable from a carb'd mustang cheap nd easily.
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Old 11-15-2002, 11:37 PM   #6
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Quote:
Did Mustangs carb'd mustang come with AOD trannys? Cause I can probaly get a kickdown cable from a carb'd mustang cheap and easily.
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Old 11-16-2002, 01:19 AM   #7
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Quote:
Originally posted by Eazy-CPT-RIP
Did Mustangs carb'd mustang come with AOD trannys?
That's a negative.
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Old 11-16-2002, 02:04 PM   #8
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The Lokar kit is a little over $50. A manual valve body will cost you several hundred dollars
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Old 11-16-2002, 10:11 PM   #9
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Thanks..

Will theLokar it include everythign I need to rig up a AOD to a Chevy Carter Carb, or will there be other things I need to buy too?
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Old 11-17-2002, 01:06 AM   #10
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Dont feel alone...I am in the same situation with an AOD in a 94 Cobra.

But nothing gonna stop me now...
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Old 11-17-2002, 01:39 AM   #11
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Not that this will help any...

The F150 of about 85 or so had a Motorcraft two barrel and an AOD. Talk about a slug. But anyway it used a TV rod that looked similar to the usual Ford kickdown used on 70's or so trucks and cars.

The difference in the set-up from the older kickdown was on the carb. The TV linkage arm would ride with the throttle arm, not several inches back like the kickdown of earlier cars. There was also a set screw that would ride on the throttle arm for setting base TV pressure in the trans.

It is important that the TV arm ride with the throttle arm so that trans internal pressures will increase as the throttle is opened. But also you must be able to set trans pressure separately from the idle speed.

The closest OEM pass car linkage I can think of would be from the CFI/AOD cars of 84 and 85. The problem with these will be that the arm will be a bit short as a four barrel moves the centerline of the primary throttle shaft forward when compared to the two bbl and CFI units.
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Old 11-17-2002, 12:19 PM   #12
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thanks for the info so far guys
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Old 11-17-2002, 07:53 PM   #13
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GT40Capri, that was good info. I have this problem right now that I can't seem to figure out. I have a 83' Bronco w/AOD(C5-3speed). I ditch the 2 barrel and dropped on an RPM and Holley 600 vac. w/elec choke. It has the hook ups for the TV cable from the tranny. I got the AOD bracket kit from holley too. I hooked it all up and the damn thing won't shift unless I wind it out pretty high. So, I don't want to make a big problem of the situation until I can get some better ideas on what to do. I compared measurements between the 2 barrel and 4 barrel. The 2 barrel throttle bracket makes contact with the TV cable bracket in 7/8". Then it travels 1" more before it stops. Is this where I should be at or is the screw that came with the holley kit(20-91) the right one to use? I'm a bit confused. Any help would be great. Its starting to snow too. It will be an interesting day tomorrow driving the stang. Lots of weight in the hatch.
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Old 11-17-2002, 07:59 PM   #14
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So is this all I need to hook up AOD to a chevy Carb, r will I need some type of bracket os springs or something?
http://store.summitracing.com/partde...57#largerimage
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Old 11-17-2002, 09:19 PM   #15
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I made a smal tab that bolts to the carter (chevy) carb lever. On the tab is one end of a regular carb kickdown rod. The other end goes to the TV arm on the trans. It just has to be set so that when the car is at idle the TV lever is fully closed or up in my case, and when at WOT the TV lever must be fully open, or down for me. My TV lever movement may be differet then yours as I swapped both the shift arm and TV levers 180 degrees to work with column shift. I can take some pics tomorrow if you think it might help.
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Old 11-18-2002, 12:07 AM   #16
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Quote:
Originally posted by Class85GT
w/AOD(C5-3speed).
OK, first thats a total contradiction. The AOD will be a four speed trans and I didn't think the 83 trucks had it but I'm not a guru on these or anything.

Assuming that you have a three speed trans there should be a vacuum hose that goes from manifold vacuum down to the pass side of the trans close to where the crossmember mount is. There'll be a vacuum modulator there and that's what causes early part throttle upshifts on these. Basically the modulator bleeds off internal trans pressure which then allows the governor to move easier and you get earlier upshifts. This assumption is kinda backed up by the delayed shift you mention. Without vacuum on the modulator the three-speeds would act like you've got the throttle wide open.

The AOD, OTOH, uses the TV linkage to INCREASE internal pressures and delay upshifts. So if you drive an AOD with the TV linkage or cable disconnected/what have you and internal pressure doesn't rise you get a very early and soft upshift. To the point of burning up the trans in short order.

I suppose there is one possible way of getting and AOD to shift late. If the linkage falls back to the max pressure position due to its own weight, an AOD would shift late and engage REALLY harshly. If you can pull the linkage forward then try to rig a spring to hold it forward and see what you get.

Personally I think you got a three speed and that linkage is for kickdown only and shouldn't follow the throttle like an AOD must. Kickdowns usually only touch the throttle arm above 50 percent throttle and have to get almost all the way to WOT before the trans will kickdown.

Do a little poking around and get back to us.
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