When I installed the Big Foot Levelers on my Axis (E450 chassis) they recomended 7 inches from the ground for the retracted position that way you get 6 inches of lift (13 inch long shaft on my jacks). But some folks will raise up to the next notch if they find they are draging them.
I put mine at 7 inches and so far they have not dragged. I put the back at 8.5 inches (I thought they would be 8 when I installed them) because they are so far back (behind the axle) and I was afraid they would drag when you have dips in the road for entrance ways etc.
So far so good BUT I might try to lower the back one notch later on if im not having any problems.
I would day 7 is normal for most C class (in the front)
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2017 Axis / 25.4: Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights, TPMS, Surge tank, Tornado flush, Viair Compressor
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