NOTE:  Gear ratios for the TFX are the same as a Tjet with a 9T pinion (15T) and 7.1 pinion (19T).  When the tire size difference .352"/.320" compared to a SS car is included the equivalent pinion gear changes to 9.9(15T) and 7.8 (19T).
Gear ratios are wrong in a few videos below.