AOD to 4R70W Gears - TCCoA Forums
 
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post #1 of 25 (permalink) Old 09-08-2003, 10:36 PM Thread Starter
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AOD to 4R70W Gears

Could someone please post the Ford part numbers or point me to where the info is. Also, could I just take first and second from the 4R70W and leave the AOD 3rd and OD? Is there any advantage to the 4R70W gears strength wise if they are interchangeable? Thanks
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post #2 of 25 (permalink) Old 09-10-2003, 01:41 AM
 
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From what I've learned it shouldn't be any problems using any 4r70w planetary
gears in your AOD...

Art Carr sells them brand new for $599 (if you ask 'em nicely you can get a 10% discount..) Probably not the cheapest place but....

Why wouldn't you want to use the complete 4r70w gears??
The third gear is the same as the AOD one and the 4th on the
4r70w has a .67 ratio and the AOD .70..
That's not much of a difference...
You'll actually save a tiny bit fuel on that....

Unfortunately I haven't got the partnumber, right now anyway...
When I get home in 9 hours I'll post the part# Art Carr uses...


//Thyg0d
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post #3 of 25 (permalink) Old 09-10-2003, 10:43 AM
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just use the AOD wide ratio Motorsport setup.. PN M-7398-D

joseph




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post #4 of 25 (permalink) Old 09-10-2003, 12:12 PM
 
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I have a wide ratio set from a 94 4R70W for sale. $150 plus shipping. You can have the entire trans if you want. E-mail me if interested. [email protected]
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post #5 of 25 (permalink) Old 09-10-2003, 04:01 PM
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Quote:
Originally posted by The Great Obucina
just use the AOD wide ratio Motorsport setup.. PN M-7398-D

joseph
ummmm, the AOD wide ratio setup is a gearset for a 4r70w...dude
its usually cheaper to find a good tranny core and take the gears out of it than to buy the gearset seperately

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post #6 of 25 (permalink) Old 09-10-2003, 04:44 PM
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Quote:
Originally posted by dugweed


ummmm, the AOD wide ratio setup is a gearset for a 4r70w...dude
its usually cheaper to find a good tranny core and take the gears out of it than to buy the gearset seperately

Mike
it was just a suggestion.....always have multiple options.

joseph




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post #7 of 25 (permalink) Old 09-10-2003, 07:31 PM Thread Starter
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Thanks for the replies guys

Actually, the AOD is supposed to have the .67 OD. That is why I want to reuse 3rd and OD. Save money and get a better OD. This is from the tech page.

4R70W ratios are: (1st) 2.84, (2nd) 1.55, (3rd) 1.00, (OD) .7
AODE ratios are: (1st) 2.40, (2nd) 1.40, (3rd) 1.00, (OD) .67

MN12 Performance,
Are those new? Would you go lower? What part of the States are you in? Thank you. I will email you as well as I am in a hurry.
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post #8 of 25 (permalink) Old 09-10-2003, 09:23 PM
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The difference in OD ratio wouldnt be noticeable at all... .03 is very small. Auto tranny gearsets are a lot different than the manual gearbox type... I think you're confusing the two. I don't even know if you could swap just one ratio - I didn't think so.

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post #9 of 25 (permalink) Old 09-11-2003, 04:10 PM Thread Starter
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Silver,
They are interchangeable from the 4R70W to the AOD/AODE to allow for a deeper first/2nd gear. All I wanted to know if the complete set needed to be changed. I just need MN12 to reply.

Dude, I'm in a hurry. Get back to me please. Thanks.
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post #10 of 25 (permalink) Old 09-11-2003, 05:56 PM
 
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The parts are from a used transmission. The trans had 100k miles on it.
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post #11 of 25 (permalink) Old 09-11-2003, 08:32 PM Thread Starter
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MN12 Performance,
Are flexible on the price? What kind of shape are they in? What part of the States are you in? Thank you.
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post #12 of 25 (permalink) Old 09-11-2003, 09:21 PM
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Quote:
Originally posted by Flex
Silver,
They are interchangeable from the 4R70W to the AOD/AODE to allow for a deeper first/2nd gear. All I wanted to know if the complete set needed to be changed. I just need MN12 to reply.

Dude, I'm in a hurry. Get back to me please. Thanks.
I know the gearsets interachange, but I dont think you can do a partial swap. you either swap the gears or you dont. You were asking about swapping 1st and second without changing OD... I think you're just in a hurry and didn't read things the way i meant them.. no biggie

96 Mustang GT 5spd. w/ 248A Option (GTS). Stock for now until I get the Roush on.

97 Thunderbird 4.6L LX /w Sport Package
24k B&M Cooler, 1" lowered, Steeda UD Pulleys, Dynomax cat-back, J-mod, 3.73's, PI intake, PI cams, 03 GT MAF/Tube, SCT tuned - Gone but not forgotten.
MAMN12 Drag Racing Team [email protected] In need of updated times.
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post #13 of 25 (permalink) Old 09-14-2003, 04:21 PM
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no you cant just swap the planet assembly, you need to swap over all the parts

Josh
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post #14 of 25 (permalink) Old 09-14-2003, 04:25 PM Thread Starter
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What do you mean by that?
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post #15 of 25 (permalink) Old 09-14-2003, 05:34 PM
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i had a AOD with the Wide ratio kit you can get it the Ford catalog.. It worked pretty damn good, and kept my engine in the power band alot better then the stokc gearing...
I also have a friend install 4r70W gears into his AOD.. There was some machining, Filing, ect that was needed... (but his tranny was far from a `stock rebuild', like extra clutches, ect... )
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post #16 of 25 (permalink) Old 09-14-2003, 07:54 PM
 
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I'm selling everything inside and out but if you only need the Wide ratio kit it will be much cheaper to ship as the entire trans weights over 70lbs. The Wide ratio parts weigh half that.

If installing the parts in a AOD I would go with a new mechanical reverse drum and the wide ratio parts. You won't be using the 4R70W torque converter or the case or the valve body in any AOD.

I have a transmission shop just up the street from me who will take it but I wanted to offer it up to a AOD owner who is looking to get the wide ratio parts from the trans first.
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post #17 of 25 (permalink) Old 09-14-2003, 08:21 PM
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I've got a "bullet proof" AOD parts list from Art Carr Perf. if anyone wants it posted. Prices probably aren't current, but the parts are there.

Josh Keady

1994 Super Coupe ('93 5.0L swap), 1990 Tbird 3.8L, 1982 Honda CB900F, 1972 F-100 SportCustom 4x4, 1970 Chevy Custom Camper / 20
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post #18 of 25 (permalink) Old 09-16-2003, 02:38 AM
 
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Does the output shaft needs to be changed when doing the wide ratio swap?
I remember reading something about having to use a 1993 Mark 8 transmission output shaft in the Transmisions 101 article due to some extra hardening required for the 4R70W gear set.
Art M.
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post #19 of 25 (permalink) Old 09-16-2003, 09:33 PM Thread Starter
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Could you please check on that?
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post #20 of 25 (permalink) Old 09-16-2003, 11:01 PM
 
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Ok I found it, its under building a bullet proof 4R70W, on the AOD only paragraph.
Here is the link

http://www.tccoa.com/articles/tranny...on/page7.shtml

What i don´t know, and hence my question is if it needs to be done when swaping the gear set or only reccomended if you want to bullet proof the tranny. Also I wonder if there is any way to identify this particular shaft or if you can just get one from a dealer.
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Last edited by Art M.; 09-16-2003 at 11:32 PM.
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post #21 of 25 (permalink) Old 09-16-2003, 11:19 PM
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Sounds like that shaft is a must. Just from the paragraph, it sounds like the 4R70W gear set is tougher than the AOD output shaft and will shred the shaft.

Josh Keady

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post #22 of 25 (permalink) Old 09-17-2003, 01:37 AM
 
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From what I've heard from Art Carr the output shaft is a good idea if you put out more than 350-400 hp...

From what I've read in the article you either have to get an output shaft from a
93 Mark 8 trans or a solid one..

If you go with the solid one you'd have to change the TC...
I.e. really expensive...
And finding an outputshaft from a 93 Mark 8 trans seems a bit
hard... Also seems hard to know that you're getting the shaft from a 93
and not a 92... or from a mark 8 and not a T-bird and so on...

Here's the list from Art Carr that makes it possible for the AOD to handle 800 HP...

http://mn12racing.com/docs/AOD_PARTS_INFO.doc


//Thyg0d
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post #23 of 25 (permalink) Old 09-17-2003, 02:38 AM
 
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I can only find a reference for an input shaft at the art carr site but not an output shaft,
Why would changing the output shaft require a different TC?, I was under the impression this has to be done when changing to the solid input shaft, but I don´t see how changing the output shaft will affect which TC is used, is the input shaft the same as the output shaft?, (I'm new at this tranny stuff so bear with me please). If they are, another alternative could be this one:

From the baumannengineering site:
"The Precision Industries input shaft is a replacement for the inner or direct input shaft, thereby eliminating shaft failure in high-torque applications, such as supercharged, stroked, or heavily modified engines. Another advantage of this shaft is that it may be installed without disassembling the transmission (once the transmission is removed from the vehicle). The Precision shaft also allows the use of a stock-style "lockup" torque converter."

Art M.

Last edited by Art M.; 09-17-2003 at 02:48 AM.
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post #24 of 25 (permalink) Old 09-18-2003, 11:40 AM
 
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Oh, sorry... My bad...
Got the input and output mixed up...
I think I read it as input...
Only had three hours sleep that night...

//Thyg0d
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post #25 of 25 (permalink) Old 09-18-2003, 12:47 PM
 
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Quote:
Originally posted by Thyg0d
Only had three hours sleep that night...

//Thyg0d
NP, been there, done that.
I guess we are back to square one, What to do about the output shaft, anyone?
Art M.
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