Buick 1995 Century Owner's Manual page 197

Remove any rust or dirt from
the wheel
bolts,
mounting
surfaces
and
spare wheel. Place the spare on the wheel
mounting surface.
9. Place the spare on the wheel mounting surface.
10. Replace the wheel nuts with the rounded end of the
nuts toward the wheel. Tighten each nut by hand
until the wheel is held against the hub.
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