1993 GMC Suburban Owner's Manual - Page 259
1993 GMC Suburban Manual
Page 259 highlights
PO500 Lowerthevehiclebyrotatingtheratchetcounterclockwise.Lowerthejack completely. Tightenthe nuts firmlyinacriss-crosssequence clockwisewiththe UP markingfacing you. as shown.Rotatetheratchet 5-27
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