AOD upgrade - Question

[frost0100]

I've gotten almost everything I need - I just have a question about flexplates. I know I need the 164tooth - 50oz for my 1989 351W.

My engine has 1 piece main seal not two. But every 50oz 164tooth flexplate I find is for a 2 piece rear seal not the 1. Are they talking about the same seal? Do I need a 1 piece or two? Just a little confused as what I need for my application

 

[bnickel]

the 351 uses a 28oz imbalance felxplate not the 50oz as used on 81-up 5.0's. all 351w's use the same balance factor too. so what you really need is a 28 oz balance for a 351.

 

[frost0100]

I was told by CJPONYPARTS and from most research that I've found that when switching to a AOD transmission from a C4 a 50oz flexplate is needed. Is that incorrect information? Can anyone clarify?

 

[tweet66]

You need a flexplate that matches the original balance of your engine. All 351's are 28oz balance, so you'll need a 164 tooth, 28oz flexplate. I don't think the rear seal has anything to do with the type of flexplate

 

[Iamdiffrnt]

+1 That's exactly what I'm doing, got 164 tooth 28oz flexplate from a pan fill c-4, should work out ok, but the weight has to match the engine.

 

[frost0100]

Thanks for the clarification --- :SNSign:

 

[302 coupe]

one more thing, the engine doesn't care how many teeth are on the flexplate. The flexplate style (except for the 28 or 50 oz deal) depends on the trasmission and torque converter. I'm no AOD expert, they may all use the same 164 tooth count and same torque converter bolt pattern for all I know. C4's do not, they can have different tooth counts and bolt patterns.

 

[Iamdiffrnt]

Yeah, I kinda lucked out there, the pan-fill C-4 I was running already used the 164 tooth flex plate. So deciding to go to an AOD was an easier choice (it didn't hurt that it was free also)

 

[frost0100]

I came super close to just droppin back in a C4 - but after I looked at the difference in price (for me) the better choice was to upgrade to the AOD. From what I hear, I will be more than happy. When I got my car the first thing I did was junk everything and start over - so I'm sure I'll be happy when I'm done.

 

[Tubo(2-bo)]

As long as your upgrading to AOD, check out a 4R70W.
Yes it is, electronically controlled, and a controler like a Baumannator TCS will be needed, at extra cost to the install. The good news is; a 4R70W(part of AOD family), is more readily available(use one from 98 V-6 Mustang), already has most improvments needed by an AOD(no extra cost), and the wide ratio gear set, is a huge performance advantage.
Check out the links.

http://tccoa.com/articles/tranny/index.html#
http://www.becontrols.com/tech/tech.htm
http://www.blueriver.net/~finite/project_od.htm

If nothing else you'll have more info on which AOD to get.

I'm finally starting my install today, Baumannator install will go first, next week the tranny will go in...PULEEASE, no unforseen insurmountables!!

 

[gunmetal5.0]

AOD Upgrade question- In answer to your question, the best way to upgrade an AOD, is by putting in a t5. Thank you.

 

[302 coupe]

AOD Upgrade question- In answer to your question, the best way to upgrade an AOD, is by putting in a t5. Thank you.

yeah, since the T5 is the holy grail of transmissions

 

[Tubo(2-bo)]

AOD Upgrade question- In answer to your question, the best way to upgrade an AOD, is by putting in a t5. Thank you.

Ahh, A throughly "incite"full answer. I'm sure, your thoughtful reply will be most helpfull. Hehhheh



incite=to stir, encourage, or urge on; stimulate or prompt to action: to incite a crowd to riot.
Synonyms- instigate, provoke, goad, spur, arouse, exhort; induce.