AOD Transmission into a 1968 coupe? - Vintage Mustang Forums

 
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post #1 of 10 (permalink) Old 01-23-2004, 03:33 PM Thread Starter
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Hello, has anyone put a newer Transmission in there car?
I have a '68 coupe 289 with a C-4 trans. and was thinking doing the swap. Is it worth doing? or should I just have my C-4 rebuilt?.
Thanks,

1968 289 V8 .
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post #2 of 10 (permalink) Old 01-23-2004, 03:43 PM
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Rebuild, converter, flexplate, rear mount will set you back about $1500. Well, I rebuilt a junkyard core into one with police servos, Kolene clutch plates, shift kit so yeah, that cost a little more.
Some folks are gonna say get it out on here, there, or whereevr and it will be less.

Roddster
67 GT 350
67 S code GTA coupe
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post #3 of 10 (permalink) Old 01-23-2004, 03:50 PM
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I have.

The swap works great, but it would defintely be cheaper and easier just to get your C4 rebuilt. In my mind the biggest factor is what you want to do with the car. If you want to have a low geared rearend AND maintain good highway drivability, then an overdriven transmission is fantastic (if you have the cash to spend). If you don't mind running 3.00 (or higher) gears and/or you don't go on the interstate, then swapping is a lot of trouble for little benefit.

The AOD is the most popular automatic to swap. A 4R70W can also be used.

Phil
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post #4 of 10 (permalink) Old 01-23-2004, 03:58 PM
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I agree with HoosierBuddy. Depends on the intended use of the car. My '66 is my daily driver, that sees some occasional track time. I have an AOD with a 3.50 rear and love it. At 75mph on the freeway, I'm turning 3-3.2k RPMs, but still have all the get-up-and-go that I want with the 3.50.

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post #5 of 10 (permalink) Old 01-23-2004, 04:03 PM Thread Starter
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Hello, I want to be able to drive on the freeway.
And I want to go to lower gears . so I guess it would be a good thing to do? What kind of car do I get the donor trans from?......Thanks, Bob

1968 289 V8 .
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post #6 of 10 (permalink) Old 01-23-2004, 04:04 PM
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I agree with everything said.
AOD is a cool, awesome, wonderful, stupendous upgrade....if you need it.

I run 4.11s in the car and needed an AOD since everywhere I want to take it to have some racing fun is hours away (except for one spot which is 5 minutes away). I also live in the country, all my freind, family and other people I might visit are hours away by freeway.

I must admit though, with my stroker and my AOD it sure is a blast out accelerating everything I have seen so far without ever switching out of OD ::

Nick
1965 Fastback 410c AOD - DT
1967 Fastback 347 FMX - Cruiser
1968 Fastback 408w T5 - Brute
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post #7 of 10 (permalink) Old 01-23-2004, 04:17 PM
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I would do a search for AOD on this forum and spend a couple hours of reading. There's all kinds of different ways to go from "cheap, but will work" to "expensive, but you can't break it".

The AOD, it seems was in a constant state of change from it's inception in '84, constantly getting better. They say that the '84's are the fragile ones, but that's what I have in mine and haven't been able to break it.

There's also the issue the goofy shift pattern. Many people don't like it, so opt for after market valve bodies. Since there is only 3 forward drive positions on the shifter, but 4 forward gears, things get a little bizarre.

On a stock AOD the shift pattern is like this:
P-Park
R-Reverse
N-Nuetral
3-automatic shifts from 1st, 2nd, 3rd, OD
2-automatic shifts from 1st, 2nd, 3rd ... OD is locked out
1-Holds 1st or 2nd gear depending on which you're in ... will also downshift from 3rd/OD to 2nd gear if RPMs are low enough to not explode the tranny.

When drag racing a stock AOD, shifting is really wierd, but you get used to it pretty quick. It's just like manually shifting a '65/'66 GreenDot C4.

If you're on a budget, I'd recommend finding a low mileage AOD from a PicNPull, putting in a decent converter and shift kit. If money's no object, Lentech makes a very nice, stout AOD.

For the conversion stuff, check out Windsor Fox.

I used the WF shift linkage and x-member, the Lokar TV cable (a TV cable/rod is a MUST) and had a stock AOD flexplate machined down to correct imbalance when my engine was balanced (it was way cheaper that way).

Good luck ... it can be a pain getting all the parts and getting them working right together, but is well worth the effort!

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post #8 of 10 (permalink) Old 01-23-2004, 04:31 PM
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A great site to read is here:

http://www.baumannengineering.com/usedtrns.htm

It discusses what all your options are.

Phil
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post #9 of 10 (permalink) Old 01-23-2004, 08:04 PM
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More interesting reading....
http://www.mustangandfords.com/howto/5280/index.html
http://www.mustangsandmore.com/ubb/D...C4AODswap.html
also see the FAQ at www.windsor-fox.com



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post #10 of 10 (permalink) Old 01-24-2004, 07:54 AM
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