Mine was a kit from US cartools its setup to come down to the car. I estimated a centerline through the body as to how much weight was in the roof to the floor, left to right is easy. Raise the car unlock the rotisserie and have a couple buddies for safety. Move the car an inch or two if it feels heavy at that point drop it down and adjust.It only took three adjustments and I could turn the car all the way around with a finger.If you add or subtract parts it changes. I use heavy steel saw horses to set the car on for adjustments.