speed calibrator??

[DSkeet]

I'm about to get some 3.73's but I know I will need to calibrate the speedo, does anyone know where I can get a calibrator and does anyone know what they run?

[96GTS]

Dallas Mustang, $100 Or check the corral ads. I got mine for $70 shipped brand new. Works perfect. Make sure it is for your year and whether you have a 5spd or auto...