I purchased a used Warn 8274 winch and a bumper that was fabricated locally to fit a Ford Explorer for $500. The bumper had to be cut to size and the brackets modified to fit the Trooper. I decided to attach the bumper by using the stock bumper arms and the existing 3/4" holes beneath the front body brackets. I reamed out the holes on the bumper arms to accept 5/8" bolts and fabricated new brackets out of 1/4" plate. I welded gussets on the inside of each bracket to stiffen the bumper laterally. The completed bumper weighed 95 lbs. After mounting the winch, the torsion bars were adjusted to the stock height of 33-34" at the center of the headlights. It seems that the previous owner must have lowered the front suspension by 2", or the height was lost with age. The weight of the winch and bumper had only caused the suspension to lower by 1/2".