Hello, you will set the height to 3-4 inches. If you need more install help, you can view the ZGlide install video here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-J7e32VG4SbM.html
It's a little disappointing that Deere does not put some type of suspension on the zero turns from the factory, whether it be some type of suspension on the wheels or maybe a seat suspension.
Hi Scott, ZGlide Suspension forks absorb shock from rough terrain resulting in a more comfortable ride for the operator while also preventing the mower deck from bouncing, resulting in a more even cut. You see them in action at ZGlideSuspension.com.