The adjustables actually allow you to deal with driveline angles and address vibrations if you have any. I went with a 1 piece driveshaft and the motor is at factory height. There’s more clearance which helps with LTH. Those factory mounts are the size and appearance of the largest navel Orange I’ve ever seen.Yes they where stock. Im looking at the steeda with my stock brackets. Im concernd about drive pitch angle and vibration. Do I want adjustables?