speedo & AOD

Jeff Chambers · 01-08-2006, 06:24 PM

Yep, depends on what vehicle and what year the rebuild AOD orignally came from. The drive gear is actually machined onto the output shaft of the AOD so its not possible to change it without tearing the tranny down and replacing the output shaft. Now if you can figure out what output shaft is in the trans, you can match the driven gear for a correct reading. Driven gears are cheap, so you just might buy one in each direction of where you're at now and give them a try. It only takes a few minutes to change out a driven gear.

See here http://www.crt-performance.com/speedometers.htm for more information.

marton · 01-09-2006, 03:47 AM

Hi Jeff,

Many thanks, excellent link - good idea to try driven gears each side of the one that I have.

Looks easy to change

Thanks again

Marton

~The Jester~ · 01-09-2006, 02:21 PM

I saw the title of this post in the list, and I was already thinking Jeff's link before I even clicked on it.

GOOD info on that whole site. Browse around in there sometime ya get a minute.

01-08-2006, 06:24 PM	#1
Jeff Chambers Moderator Join Date: Aug 2000 Location: Milan, OH Posts: 2,699	Re: speedo & AOD Yep, depends on what vehicle and what year the rebuild AOD orignally came from. The drive gear is actually machined onto the output shaft of the AOD so its not possible to change it without tearing the tranny down and replacing the output shaft. Now if you can figure out what output shaft is in the trans, you can match the driven gear for a correct reading. Driven gears are cheap, so you just might buy one in each direction of where you're at now and give them a try. It only takes a few minutes to change out a driven gear. See here http://www.crt-performance.com/speedometers.htm for more information. __________________ Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!"

01-09-2006, 03:47 AM	#2
marton Registered Member Join Date: May 2001 Location: Zurich, Switzerland Posts: 30	Re: speedo & AOD Hi Jeff, Many thanks, excellent link - good idea to try driven gears each side of the one that I have. Looks easy to change Thanks again Marton __________________ Marton 93 5.0 LXConvertible 35'000 Miles Vibrant Red Limited Edition white top & leather, Opal wheels

01-09-2006, 02:21 PM	#3
~The Jester~ Rat Killer Join Date: Aug 2002 Location: Cold ass Ohio Posts: 1,143	Re: speedo & AOD I saw the title of this post in the list, and I was already thinking Jeff's link before I even clicked on it. GOOD info on that whole site. Browse around in there sometime ya get a minute. __________________ d-Con Racing "Nothing fancy, just 347 inches of RAT POISON!" MICE need not apply.....

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