The 2D is the most widely used aftermarket transaxle in the recreational vehicle market.
The MD5 is a medium-duty transaxle used primarily in class 10 and 12 desert racing classes.
The S4 features wide gears and a large reverse. Ideal for anything form sandcars to race cars.
The S4D is very similar to the S4 with the exception of a larger ring and pinion. Designed for bigger horse power and bigger tires.