Put your team and yourself one step closer to the checkered flag, if you are racing in a class that utilizes T101, SR1 or GS1 transmissions. Andrews Products has input shafts and gears for these boxes with gear ratios from 2.267 first gear all the way down to a 1.100 to 1 fourth gear. Andrews Products has more than 370 different ratios to pick from. All components are made of the highest quality steel, heat treated for strength and ground to precise dimensions. Utilize the link below to view a complete gear ratio chart.                                                                      

 Click Here To Download A101 Gear Ratios