1993 GMC Suburban Owner's Manual - Page 255
1993 GMC Suburban Manual
Page 255 highlights
, . ... . . I ... PO205 Usingthesocket and ratchet,with DOWN facing you, loosenallthewheel nuts.Don'tremovethemyet. Position the jack under the vehicle. Getting under a vehicle when it is jacked up is dangerous. If the vehicle slips off thejack,youcould be badlyinjuredorkilled.Never getunderavehiclewhen it is supported only by a jack. 5-23
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