AOD to T-5 swap done..now mph is off. How do I fix it?

[Toddstang LX]

Since I got my AOD to T-5 swap done I noticed I was HAULIN A$$ everywhere I went...and thought it couldn't be right. So I started asking around to find out what gears I have in my rearend... One friend suggested that I jack up my car, mark my driveshaft and turn one wheel a full rotation and see how many rotations the driveshaft turned. The driveshaft turned approx. 3.7 times around. So I'm assuming I have 3.73 gears in my rearend. NOW... I just swapped my AOD for a Borg-Warner T-5 out of a '93 Cobra and I swapped the little VSS gear from the Cobra aswell. The gear from the Cobra was small and black, and the AOD gear that I removed from my speedo cable was larger and brown.

My question is--> How do I figure out which VSS gear I need to make my speedo correct again?...

 

[blckstng96]

go onto mustangsunlimited and it will tell you what color gear you need.both the colors you have are wrong.red or green i think maybe.cant remember

 

[Toddstang LX]

go onto mustangsunlimited and it will tell you what color gear you need.both the colors you have are wrong.red or green i think maybe.cant remember

Thanks!!

I'll try that...I didn't know there was MANY different color gears.. GOOD TO KNOW!