It is a full inch higher in the back 39.5 in the front 40.625 on the back. I could have take a better shot. I think there was a slight incline on the second shot.
Just put the RC 2.5 lift/level on new GMC Sierra 6.2. It made all the difference in the look. Much more aggressive but still rides great. Went with the 305/55/20 Nitto's.