Q about gearsets - TCCoA Forums
 
LinkBack Thread Tools
post #1 of 7 (permalink) Old 04-30-2013, 08:41 PM Thread Starter
3rd Gear Poster
 
germz1986's Avatar
 
Join Date: Dec 2012
Location: North Carolina
Age: 33
Posts: 140
Q about gearsets

Hey all, I'm in the (very) slow process of saving money and modding my 96 bird.

So far I have a tweecer on the way here as I type, and putting on a tranny cooler this weekend.

I drive this car daily, and do a fair bit of hwy driving, not overy worried about going fast, but I am worried about fuel milage.

I will be changing gear sets soon, more than likely going to either 3.27 or even 3.08s.

I also see that the aode trans has a (very) smaller OD 4th, .67 vs the 4r70w .7.

I play on having the tranny built for my (eventual) turbo stroker build, Is it possible to swap the od gear from the aode into my 4r70w?

1997 Royal Blue Metallic 4.6l
Pioneer P8400H
Diamond Audio D6 5x7's Driven by Hiffonics 4ch
Alpine Type R 12's
PRB Brakes
Tweecer Tuned by me
germz1986 is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 05-01-2013, 05:06 AM
Seasoned PostWhore
 
theterminator93's Avatar
 
Join Date: Jan 2009
Location: North Ridgeville, Ohio
Age: 31
Posts: 9,043
Garage
The AOD gearset is notoriously weaker than the 4R70W's. Your car also has a 3.27 stock from the factory. If you're concerned with fuel mileage, you can go to a 3.08 (or if you're absolutely sure you don't care about the loss of torque multiplication) even a 2.73 to keep the highway RPM down.

However a better way to get more fuel economy is to get the car tuned by someone who knows what they're doing and to ensure that all the regular maintenance items are taken care of. When stock it wasn't uncommon for my car to get averages of 30 MPG on the highway.

-Brandon
97 Laser Red Thunderbird LX 162k, Stage 2 4.6L 2v N/A | 300 BHP (255 RWHP, 290 RWTQ) | 13.95 @ 97.58 | Build details | Pics at the Lorain Assembly plant
98 Black Mark VIII 160k, stock daily driver
07 Redfire Fusion V6 SEL 178k, for the wife
Gone but not forgotten: 96 Mark VIII, 94 Cougar XR7, 93 Mark VIII

TCCoA's resident pilot since 2014
Once you have tasted flight, you will walk the world with your eyes turned skyward, for there you have been and there you long to return. -Leonardo da Vinci

Last edited by theterminator93; 05-01-2013 at 05:55 AM.
theterminator93 is offline  
post #3 of 7 (permalink) Old 05-01-2013, 08:53 AM Thread Starter
3rd Gear Poster
 
germz1986's Avatar
 
Join Date: Dec 2012
Location: North Carolina
Age: 33
Posts: 140
I see, well ty for that, I wasnt aware the gearset was weaker, that is good to know.

I have done all regular maint, car has fresh set of wire, plugs, and coils. I change the oil every 3k and run full synthetic. Tranny gets a fluid change every 10k.

Last long road trip I went on (600+ miles) I averaged about 24 mpg.... I had the cruise set @ 75 most of the way (speed limit is 70 most of that trip), also had a fair bit of luggage.

I have a 97 lincoln conti, that with the same load of ppl and luggage gets about 27 @ the same speeds.

And I think your right, i'll likely go with the 3.08's

1997 Royal Blue Metallic 4.6l
Pioneer P8400H
Diamond Audio D6 5x7's Driven by Hiffonics 4ch
Alpine Type R 12's
PRB Brakes
Tweecer Tuned by me
germz1986 is offline  
Sponsored Links
Advertisement
 
post #4 of 7 (permalink) Old 08-23-2013, 03:53 PM Thread Starter
3rd Gear Poster
 
germz1986's Avatar
 
Join Date: Dec 2012
Location: North Carolina
Age: 33
Posts: 140
Resurrecting an old thread of mine here. Since posting this, i have learned that you never make top gear pulls with this trans.

Something about the OD band not being all that strong.

Knowing this. Would it still be ill advised to say swap just 4th from the aode trans when i build/rebuild this trans?

1997 Royal Blue Metallic 4.6l
Pioneer P8400H
Diamond Audio D6 5x7's Driven by Hiffonics 4ch
Alpine Type R 12's
PRB Brakes
Tweecer Tuned by me
germz1986 is offline  
post #5 of 7 (permalink) Old 08-23-2013, 04:56 PM
Seasoned PostWhore
 
bowez's Avatar
 
Join Date: Aug 2002
Location: NEAR
Posts: 2,472
If memory serves you already have the 2" OD band (the best available to my knowledge). Mechanically a AODE is a 4R70W if you are to swap any it would need to be 03+.

If all else fails get a bigger hammer!

93 SC Tbird
MPII w/ Plenum,90mm MAF, 85mm TB, 40# Injectors, 255 lph FP, Double IC w/fan, SCT Chip (Tuned by Jerry),3/4" Raised Top, F52-TT TC, SilverFox AOD 550, SPT-R VB
96 1/2 XR7 Sold and Salvaged
93 5.0 Tbird
bowez is offline  
post #6 of 7 (permalink) Old 08-23-2013, 07:30 PM
Converter Guy
 
dirtyd0g's Avatar
 
Join Date: Jul 2004
Location: batavia,oh
Age: 42
Posts: 6,617
Send a message via Yahoo to dirtyd0g
You have to swap all the gears this transmission only has one planetary set and the aode overdrive is very close to 4r70w anyway, the 1st gear of 4r70w makes the car launch better, but aod(E) gearset is more evenly spaced. All 4r70w's have a 2 inch band it's the late mechanical diode that is so much better.
Alan

DirtyDog Performance.Com
Proud sponsor of the SC/XR7 Shootout and Joel Bender Memorial Nats

Please do not send me messages on forums they are too hard to keep up with and I don't check in very often anymore call me at 513 898-1580 or email me alan at dirtydogperformance.com
dirtyd0g is offline  
post #7 of 7 (permalink) Old 08-23-2013, 07:39 PM Thread Starter
3rd Gear Poster
 
germz1986's Avatar
 
Join Date: Dec 2012
Location: North Carolina
Age: 33
Posts: 140
tyvm gents

1997 Royal Blue Metallic 4.6l
Pioneer P8400H
Diamond Audio D6 5x7's Driven by Hiffonics 4ch
Alpine Type R 12's
PRB Brakes
Tweecer Tuned by me
germz1986 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the TCCoA Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome