Challenger Lifts announced several enhancements for the CL10 series 10,000-lb. capacity two-post lifts including factory-installed rubber door guards to protect vehicle doors from contacting columns and grease fittings on the arm pin bushings to minimize corrosion and keep arms swinging freely. The lifts offer adjustable arm restraint shafts located on the bottom of the arm restraints. Adjust up and down to compensate for uneven floors, floor tile and special floor coating.