Where is the output shaft?

91LXConv · 03-01-2001, 04:12 PM

In order to determine whether or not I want to go forward with a rear gear change, I need to get a look at my AOD's output shaft to determine if it has 7 or 8 teeth. Where is the output shaft and how can I get it where I can see it?
PS- my car: 91 5.0 LX with an AOD

Z28EATR · 03-01-2001, 04:27 PM

get the car off the ground, at least the rear end, undo the bolts connecting the drive shaft and pull the front of the drive shaft out of the back of the tranny, count the teeth on the output shaft which is what the yoke of the drive shaft fits over. There might be an easier way but i dont have a whole lot of mechanic smarts. Just enough to get the job done, beware of tranny fluid spilling out when you remove the drive shaft. Also mark the rear end of the shaft in conjuction to where it connects to the rear end so as not to unbalance it when you put it back, a little white out or in my case a nice scratch mark with my dremel.

good luck

03-01-2001, 05:28 PM

I think what '91 is talking about is the 7 or 8 tooth speedo drive that is machined into the output shaft of the AOD. Unlike the T5's, the drive gear of the speedo is integral with the output shaft; the only way to change the drive gear is to replace the entire output shaft...not a pretty picture.

Anyways, the easiest way I can say to do it is to remove the speedo driven gear from the transmission housing then use a flashlight and mirror to look down into the speedo hole and count the teeth.

------------------
Jeff Chambers
T/S #3
11.97 Seconds/114.5 MPH
Chambers Racing Team

03-01-2001, 04:12 PM	#1
91LXConv Registered Member Join Date: Feb 2001 Location: Pensacola, FL, USA Posts: 36	Where is the output shaft? In order to determine whether or not I want to go forward with a rear gear change, I need to get a look at my AOD's output shaft to determine if it has 7 or 8 teeth. Where is the output shaft and how can I get it where I can see it? PS- my car: 91 5.0 LX with an AOD

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03-01-2001, 04:27 PM	#2
Z28EATR Registered Member Join Date: Jun 2000 Location: Florence, KY,USA Posts: 210	get the car off the ground, at least the rear end, undo the bolts connecting the drive shaft and pull the front of the drive shaft out of the back of the tranny, count the teeth on the output shaft which is what the yoke of the drive shaft fits over. There might be an easier way but i dont have a whole lot of mechanic smarts. Just enough to get the job done, beware of tranny fluid spilling out when you remove the drive shaft. Also mark the rear end of the shaft in conjuction to where it connects to the rear end so as not to unbalance it when you put it back, a little white out or in my case a nice scratch mark with my dremel. good luck

03-01-2001, 05:28 PM	#3
jchambers Guest Posts: n/a	I think what '91 is talking about is the 7 or 8 tooth speedo drive that is machined into the output shaft of the AOD. Unlike the T5's, the drive gear of the speedo is integral with the output shaft; the only way to change the drive gear is to replace the entire output shaft...not a pretty picture. Anyways, the easiest way I can say to do it is to remove the speedo driven gear from the transmission housing then use a flashlight and mirror to look down into the speedo hole and count the teeth. ------------------ Jeff Chambers T/S #3 11.97 Seconds/114.5 MPH Chambers Racing Team