[joedoh]

yes, the FLOOR will be level with the top of the straight part of the frame.

you can also stand back from the side and the bottom of the rocker will be parallel to the bottom of the frame in the straight part. although this can be misleading if you arent straight on, because the cab gets wider as it goes back, so any misalignment in viewing angle will make it appear unlevel. my advice is to hold a camera level and take a picture, it takes away the foreshortening.