Aod vs C4 transmission

Make your Cougar run faster, handle better, and jump higher... okay maybe not jump higher. If you feel the need for speed, this is the place.
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neftali.rosado
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Re: Aod vs C4 transmission

#11

Post by neftali.rosado » 17 Sep 2019, 10:42

Do you have a link to the yoke you purchased?

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neftali.rosado
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Re: Aod vs C4 transmission

#12

Post by neftali.rosado » 17 Sep 2019, 13:49

Would you happen to have a part number or link?

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catlover
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Re: Aod vs C4 transmission

#13

Post by catlover » 17 Sep 2019, 15:33

Sorry, just read the last post, I removed the snout from a 80 something T-Bird D/S.Which the whole trans came out of.
There is never time to do it right, but always time to do it over

67 Cougar restomod
69 Elim. 428 SCJ orange/ white
CCOA 7574

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catlover
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Re: Aod vs C4 transmission

#14

Post by catlover » 17 Sep 2019, 16:19

There is never time to do it right, but always time to do it over

67 Cougar restomod
69 Elim. 428 SCJ orange/ white
CCOA 7574

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neftali.rosado
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Location: Oakland, CA

Re: Aod vs C4 transmission

#15

Post by neftali.rosado » 17 Sep 2019, 16:52

Thank you!

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Smilodon
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Re: Aod vs C4 transmission

#16

Post by Smilodon » 17 Nov 2019, 19:07

Don't go with stock steel driveshafts, if you have a choice on any overdrive transmission (assuming you put in proper rear gears to take advantage). At best, you'll be wondering why you have a noisy thrumming sound as you're tooting along at 80 MPH. At worst, you'll lunch the rear end pinion, tailshaft, U-joints, or bend the shaft.

Even Mustang guys have problems with this, and with our even-longer Cougar driveshaft, the problem is magnified.

Instead, go with aluminum (stock Explorer driveshafts are often a great choice!) or composite. They resonate at a frequency high enough to probably survive even at Bonneville speeds, and don't create problems.
I love Mustangs. They have a ton of great parts for my Cougar! :lol:

whitelightning777
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Re: Aod vs C4 transmission

#17

Post by whitelightning777 » 30 Nov 2019, 17:14

The C4 transmission is excellent but a 351C would probably destroy it. AOD unlts can be beefed up for supercharged later model engines & would probably work great with a 351C. They have been used with supercharged stroker 5.0 engines. The C4 is best used with mildly built 289 or 302 2bbl or 4 bbl engines. Of course, you can beef up anything.

My last Cougar was a 1970 ex-race car. Racing caused the passenger's side subframe rail to start peeling off the subframe. Basically racing destroyed the vehicle & I ran out of money restoring it. My current 1968 has an excellent straight body & I plan to gently drive it. These cars aren't full framed like Crown Vics or even Torinos. Racing them will, in my opinion, destroy them.

john Bud
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Re: Aod vs C4 transmission

#18

Post by john Bud » 02 Dec 2019, 09:59

Around 1993 i replaced the fmx in my 73 convertible with an AOD. At that same time rebuilt the 351c with edelbrock cam/manifold/4v and replaced tge 2.75 open rear with 3.25 limited slip. (Got the pumkin at a car show for $100!) Fairly mild, but still much more powerful than the 2v.

It's run flawlessly since. But only about 2000 miles/yr in wisconsin summers.

The trans was bought used for 200. Rebuilt for 350. Install costs were (est) 200 more. About 750 all in. Since them the increased fuel economy from 11mpg to 18mpg has saved 1700 GALLONS of fuel. Wasn't done as a cost savings, but it has saved.

Unless you need / want originality OR are a drag racer, there is no negative to the AOD swap.

mr.pro
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Re: Aod vs C4 transmission

#19

Post by mr.pro » 08 Dec 2019, 02:01

Has anyone put a 4R7W transmission in a 69 car and if so who's cross member did you use .

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Smilodon
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Re: Aod vs C4 transmission

#20

Post by Smilodon » 08 Dec 2019, 11:33

You can often use the stock crossmember just by drilling a couple more holes, but they sell them on Summit and other sites for around $150.

AOD and 4R70W mounts are interchangeable. The only real difference between your stock mount, and one for this transmission is likely to be that the bolt holes are a little farther back.
I love Mustangs. They have a ton of great parts for my Cougar! :lol:

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