Fox T-Bird/Cougar Forums

Technical => Drivetrain Tech => Topic started by: GigShooTer69 on July 25, 2014, 11:34:30 AM

Title: Overdrive AOD When and what speed to use ?
Post by: GigShooTer69 on July 25, 2014, 11:34:30 AM
What the ideal speed to put into Overdrive ?

I put my T-Bird into OD at 70-80 Kms and drop it back to Drive at 50kms
keep it in D when in the city and on hills regardless the speed.

Any thoughts on how you use yours ?
Title: Overdrive AOD When and what speed to use ?
Post by: Thunder Chicken on July 25, 2014, 05:05:22 PM
I've always just put it in OD and forgotten about it
Title: Overdrive AOD When and what speed to use ?
Post by: White85GS on July 25, 2014, 07:51:07 PM
They kick into O/D around 45mph.
Title: Overdrive AOD When and what speed to use ?
Post by: V8Demon on July 25, 2014, 09:39:41 PM
In stock form with highway gears, yes.  I have mine set up right now to go into O/D @ an indicated 53 MPH at very little to zero throttle input (and yes; my speedo is accurate). 

In stock guise I used to keep it in D on roads that had traffic lights with a speed of 50 MPH or less.  Annoying to hit O/D only to have to hit the brakes so I opted to keep it off.

The way I have the car set up now I don't have to worry about it so much.  55 MPH means I'm on a parkway/expressway be me so.....
Title: Overdrive AOD When and what speed to use ?
Post by: mcb82gt on July 25, 2014, 10:40:39 PM
I use D in city driving and Bump it into OD when getting on highway.  I have 3.73 gears
Title: Overdrive AOD When and what speed to use ?
Post by: ThunderFox on July 27, 2014, 11:33:52 AM
In every Ford AOD or 4R70W I've had, I always us D unless I'm going to be over 45mph for at least a couple of minutes. All the OD band stories scare me. Lol
Title: Overdrive AOD When and what speed to use ?
Post by: thunderjet302 on July 27, 2014, 10:43:52 PM
Due to having an epoxy mod valve body in my Thunderbird I use OD all the time. I do have a 2" OD band and an A+ OD servo so it really doesn't matter. My Mark VII has a stock AOD and I usually drive around in D and only shift to OD if I'm going to be going faster than 45 for an extended period of time.
Title: Overdrive AOD When and what speed to use ?
Post by: Haystack on July 28, 2014, 01:14:29 AM
I leave it in od on the shifter and hit the 42mph to enguage od whenever possible. generally in 40-45mph speed zones.
Title: Overdrive AOD When and what speed to use ?
Post by: daminc on July 28, 2014, 07:50:41 AM
I've never driven in D...I've had many AODs and never had a problem with any, even hauling stuff up steep hills with a loaded work truck
Title: Overdrive AOD When and what speed to use ?
Post by: EricCoolCats on July 28, 2014, 08:11:36 AM
Quote from: GigShooTer69;436377
What the ideal speed to put into Overdrive ?

I put my T-Bird into OD at 70-80 Kms and drop it back to Drive at 50kms
keep it in D when in the city and on hills regardless the speed.


Quote from: thunderjet302
My Mark VII has a stock AOD and I usually drive around in D and only shift to OD if I'm going to be going faster than 45 for an extended period of time.


You are both doing it correctly. ;)

The factory OD band is the weakest so anytime you can "save" it is a good thing.
Title: Overdrive AOD When and what speed to use ?
Post by: 50tbrd88 on July 28, 2014, 09:43:52 AM
When I had the stock AOD, I never put it in "d".  I always drove in "OD".  That being said most of the miles on my car were highway. The AOD went almost 190k before I swapped the T-5 in and was still working fine.
Title: Overdrive AOD When and what speed to use ?
Post by: Haystack on July 29, 2014, 01:20:56 AM
A blown aod is a good reason to drop in the t-5 you always wanted...

honestly, my first car i blew the trans on wheny tv cable clip.broke around 250k miles. every other aod I've had was either already toasted when i bought it, or didn't give me any trouble the whole time I've owned.the.car.