I have mine set on the middle holes of the companion hitch....same truck only an LTZ with a bowtie.
I raised it from a lower setting after the intial hookup had the 5ver a little low in the nose.
I moved it again later after some scale trips.
Forward this time.
I took the whole rig and weighed the axles. The front truck axle was carrying almost no additional weight so I moved it up to add a little. (By turning the support arms around)
If your truck hasn't pulled any weight before, expect it to lower a little after the springs take a "set" from the load.
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