1993 Buick Regal Owner's Manual - Page 190

Front Towing Hook-Ups (Limited Sedan Only) Attach "T' hook chains in front of the wheel into the side slots in the cradle on both sides. r Position the lower sling crossbar against the front of the 4" x 4" wood beam. Attach a separate safety chain around the outboard end of each lower control arm. Position a 4"x 4" wood beam across the sling chains and center in,be middle of the lower facia.