hi. i have a tt-01 love it. i got into the trans-am vintage racing. that is a lot of fun. does any one know where i can find a 25t pinion? trying to get the gearing to 5.4-5.7. running right mow 24t pinion 55t spure. close. the 25t pinion would put me right there. i searched & searched.this is running off of a 4cell 4600. will post up a pic soon. thanks lewis