OUZBnd

Two weeks to the day i've owned my 02 mustang GT. Today i bought my first mod for it and i decided to go with gears, thanks to the many opinions of you guys. Since i do so much interstate driving I ended up with 3.73's.

I have a question, how do i get my speedometer adjested, or will it even need adjusted? If it needs adjusted, wont this also mess the odometer up since its digital?

thanks!

jdaniel

You will ahve to buy a speedocal or a good tuner that allows you to do it.

2002stang

What rpms Do the 3.73s make your engine sit at,

Also, How can you adjust it with that speed adjuster you mentioned.

w11988

The 3.73 gears will make you about 200 rpm higher over stock.

Here is one place to read about a speed cal.

http://www.dallasmustang.com/index.m...707&s=speedcal

The tuners like hypertech or diablo can adjust the speedometer electronically.

jdaniel

I have never done a speed cal before and after looking at the install directions I would just go all out and get the tuner! LOL. Im not the type of person that likes to do a lot to my car, I just assume leave it up to people that will HAVE to fix it if it is messed up!

01GTvertible

heck yeah jdaniel, let someone else mess it up!!!! just sometimes, it cost to much to let someone else do it.

jdaniel

yeah, but if you mess it up to begin with you have to take it to someone to have that and everything else you broke to get it all fixed all over again!

04mustang

BS the only one of my mods i took to a mechanic is ****ed up and thats my pulleys i would have done it myself but i dont have an impact wrench. the dumb fvck didnt put any silicone in the key way and it leaks. and he dosent wnat tto fix it cause he says he is afraid of breaking my new car. i should kick his ***. im being to nice lately time to be an *** again.

OUZBnd

How difficult is it to install a speedcal?

btw, i got my gears in today and i love them!

AirForce2004

Um... 99+ gt's use cpu cal opposed to changing the gear in the speedo. I would assume its perty easy. I just ordered a speed cal and Ill let ya know how it goes. But From what I was told you just plug it in and it asks what ratio... you select your ratio and boom its done. We'll see.