Buick 1993 LeSabre Owner's Manual page 208

Front Towing Hook-Ups
Position a 4" x 4" wood beam across the sling chains
contacting the bottom of the radiator support. Position
the lower sling crossbar just under the front bumper.
Attach a separate safety chain around the outboard end
of each lower control arm.
Attach "T" hook chains behind the front wheels into the
bottom slots of the cradle rails on both sides.
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