Brandons98GT

I just bought a 2000 gt 2days ago and the speedo is like 20 off, anyone know how i can fix this. Thanks

HaV

Ouch.. sounds like you have gears. For an 00, go get an SCT Xcal2. You can also go to dallasmustang.com and pick up a speedcal, but you would be better off getting a tuner. The speedcal is an easy install (I did a write up on it for this site actualy... its very simple), but if you plan on doing any mods the tuner is a much better investment.

How does the car run? Seem like it takes off like a bat out of hell, or just normal feeling for a car? The guy could have swapped in the old gears..

or I could just be wrong and your speedo is jacked. Lol.

sprostang

Find out what gear ratio you have and get a speedo recal or tuner as said above. I would get a tuner over the speedcal though.

Brandons98GT

Well it has alot of other mods, and so far everytime i put the pedal to the floor i end up sideways so i would say the gears on not stock how can i find out what they are.

HaV

Jack up the rear end, mark your tire and mark your drive shaft. 1 turn of the tire to how many times your driveshaft turns = your gear ratio. if you turn your tire one time and your ds goes around a little past 4x, then you have 4.10's. Easy enough.

You have a 00 not a 98 right? your screen name keeps messing with my head
//easily confused [&:]

Brandons98GT

Ok thanks i have a 98 and a 2000

HaV

Just a fair warning, I know on all stangs up to 97 (and Im pretty sure on the 98's.. thats the year they put in the digital odometer and ive never owned one so dont know for sure), that you HAVE to use a speedcal or speed gear. The speedo is not adjustable with a tuner/flash. You have to hardwire it or change hte gear itself.. and if you go anymore than 3.73's the gears STILL wont be accurate. 99+ you can for sure use a tuner to adjust the speedo though.

04gt5speed

sounds like u have gears u can always just replace the speedo gear if u dont want to spend the money on a tuner

doughboy4.6

speedo gear?

HaV

The older style speedometers had a little cog gear that controled it. I dont have it bookmarked anymore or I could show you. Im pretty sure the 23 tooth is the biggest one they make (which is for 3.73's). I tried it out when I had 4.10's in my cobra and it still was way off.

Like I said, 97 back (and I believe 98's) require either a speedo gear or a speedcal. Tuners will NOT change the speedo on them.


*edit Ahh to hell with it, here's ya a link: The t-45 is slightly different than the t-5.. like I said, the 23 tooth was still way off for me.. its listed on here as for 4.10's but on jegs and the brothers performance site it lists it as for 3.73's with a t-45. http://www.steeda.com/products/speed...tion_gears.php