I'm getting my 3.73's on friday and need help on a speedo gear. I have a 96 v6 with 15 in. tires. 205 65 R15 to be exact. Can seomone please help me figure out the formula.

 

just do a computer reflash, ford will already have the tire size and gear ratio programmed onto their computer

 

Doesn't everything below a 99 have to have a new speedo gear to accomidate for the different teeth on the new ring and pinion?

 

http://www.steeda.com/products/speed...tion_gears.php

That will show you the correct gear you need for the rear end difference. There will always be a slight variance because of different tire sizes, but that really can't be avoided pre-99.

 

I just called a speedo gear shop and they said that the only 23 tooth gear is made my mopar and the driven gear will eat it up...?

Other than that I'll have to change the driven gears and what not or get an electronic calibrator.

 

he has a t5 with a mechanical speedo gear.
http://www.latemodelrestoration.com/...eed-Correction

check this out. maybe they have what youre looking for.

 

I think I figured it out. I need a 23 tooth speedo gear. Can anybody find me a speedo like this now for cheap? One from Ford too. The cheapest I found was like 15 but with shipping was 23 or something. Maybe some free shipping too?