I seem to always have to manually adjust the level once it is finished with auto-adjusting. Not sure why the auto can't result in level, but it is always in need of final manual tweaking. I don't dump the rear air unless it helps get more level before I start the process. Slides on mine work before or after leveling, I suppose it is best to do it when level though.
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2005 Kenworth Showhauler 45 ft total length
twin screw, 450 hp ISX, 10 speed Ultrashift
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