98GT speedo calibration?

Speed cal works for 94-04 I believe. Hand held tuners will not correct for new gear ratios on 94-98 cars though.

Speed cal is what you need. Super easy to hook up too.

Ford pretty much covers speedo gears down to 3.73. Beyond that, you have to go aftermarket or the Speedcal.

GT

98COBRA281 said:

how do i know if my car has one , or just has a gear int he trans?

Click to expand...

Two options.
1. Pull up your outer shift boot and look to see if there is a speedcal box in there, since that is where it would be connected inside the car.
2. Find the vehicle speed sensor - it's under the car, driver's side toward the back end of the midpipe. If you have a speed cal, it would be connected to that.

I ended up getting a speedcal over the gear because I could not find a gear for 4.10 ratio. I read that the number of teeth that gear would need would make it inherently weak and prone to breaking, so I think that is why Ford stopped at 3.73

Edit - Check here for some good pictures of where the Speedcal would be located if you had one
http://www.americanmuscle.com/speed-cal-install.html