Well shoot, I'll chime in.
There are so many reasons and ways to level your camper or truck and camper whichever the case.
Just go with the flow if it isn't horribly out of level being the easiest.
Use stackable leveling blocks or wheel ramps as preferred.
Determine your elevation tilt.
If tilted nose down, place leveling devices at front wheels and either reverse or forward up onto them. There can be a preference which direction to drive onto the leveling equipment depending upon the slope of hill. You can get more lift by backing onto a ramp because the ramp and slope of terrain will add together creating more lift. A downhill slope of 2" in 24" will be pretty much level, +2"ramp -2"slope = 0"lift. The same condition with the ramp turned around and backing up will be additive so you can get 4" lift from the same spot since the ramp will be +2"ramp +2"Slope = 4"lift. You may have a diagonal slope say right rear to left front slope 2"down to front left and left rear to right front is level. All you need is a 2" lift ramp or block under the front left wheel and you're level, you might need a 3/4" piece of plywood added to the lift deice because you're right rear springs won't drop an equal amount to the left front lift. It might just go sown 1" or 1-1/2" and also the other wheels may change a half inch or so. You can be as creative as needed to achieve a given amount of lift but do it safely. I have seen a couple towers of Babble collapse under trucks before. For just the TC, if you're on dirt of grass, it's a good idea to put a 12"x12" block under the TC jack legs. You can then level the TC using the jacks. Torklift or similar Wobble stopers are a good stabilization/safety device to use. If your TC jacks aren't rated to support the TC for extended periods, you can get heavy duty sawhorses to set the TC on if level area. If not level, then you need a 4x4 and shims to achieve level. I have altered my truck camper jacks with additional steel strapping wrapping under the bottom of the TC so there is solid lifting by all jacks.
Alright, I've presented a couple scenarios, hopefully the descriptions are clear enough to understand and visualize each situation. Best wishes with your soon to be truck and camper.
