AOD speedometer calibration

[Guest]

[James93]

I currently have a 1993 Mustang LX with a few modifications. One of which is a 4.30:1 differential gear-set. I also have an AOD transmission with the stock(3.27:1)VSS gear installed. The rear tire diameter is twenty-seven inches. BTW, I also installed a 140 mph speedometer from a 1990 LX to keep the needle from pegging everytime I drive the car.

I would like to have my speedometer read correctly and I was wondering if there were any manufacturers making a gear(s) that would work in my application. The gear-set came from a Ford van with a C6(completely stock vehicle). Is it possible to take the gears from another C6?

[Whitey]

You could try the ford dealer, brothers performance and late model restorations. You really need to know how many teeth are / or were on the C-6 trans gear inside the trans and on the speed sensor. Hope this helps...

[eckertd]

Once you know how many drive teeth there are

http://www.transmissioncenter.net/speedometer_calibration_______va.htm#ford

They have just about every driven gear imaginable, and a link to a calculator to help figure out which one you need.

[84302]

Maybe this will work for you.

http://www.sccoa.com/faq/speedgr.html

[James93]

Thank you all. I didn't expect the gears from the C6 to work.