A101 Transmission Gears If you are racing in a class that utilizes A101, SR1 or GS1 transmissions, Andrews Products has shafts and speed gears for these boxes with gear ratios from 2.267 first gear all the way down to a 1.100 to 1 fourth gear. And while you probably won't use more than a few of the many ratios available, if you do need different speed gears, Andrews Products has more than 370 different ratios to pick from.
(Complete Ratio Chart - Below)
