I parked mine on the flat part of my driveway. The Chevy's definitely ride nose low. I put my 4' carpenter's level on the floor of the coach on the centerline front to back. I used a floor jack and jacked up the front of the rig until I got it level front to back. Side to side was all set as the section of my driveway is level. Once I had the floor level I took a plastic RV level that I bought, the one that shows front to back and side to side level - looks like this -
I put a glob of silicone on top of my trailer hitch then set the level into the silicone. I moved it until it showed level front to back and side to side and let it set up.
I'm a cheap Yankee so rather than buy leveling blocks I cut up some 2X10 and 2X12 doug fir into various lengths between 12 inches and 24 inches, angling the cut on one end. I stack them as needed to adjust the level of the rig. I found that if I stack a couple of the shorter blocks then put a 24 inch block on the ground to the top of the pile of blocks - in essence creating a ramp - that seems to work a little better. While I stand at the rear of the rig where I can see the stuck on level my wife drives the rig slowly forward up the ramp until I see the bubble center front to back...or at least close to level. Put it in park and put on the parking brake and it's all set. The ramp method gives much more adjustment leeway over just stacking blocks.
Or, you can buy the plastic legos and stack them up. Whatever works best for you, but the stuck on level on the rear works good. On my old camper I used one of the bullseye levels and stuck that on top of the square bumper on one corner but figured the two axis level would be more accurate.
2015 Forester 2301 - Chevy
Skip & Deb - Denmark, ME & Delray Beach, FL