Challenger Lifts' 12,000-lb. AR40series "Open Front" and "Closed-Front" Alignment Rack Packages help shops easily support today's latest camera imaging alignment systems. Some standard features include two 6,000-lb. rolling jacks, flush mount stainless-steel turning radius gauges and rear slip plates, an internal air line system for dual rolling jacks, multi-position work-steps and automatic wheel stops. The packages include 14 level-locking positions for a variety of alignment and general service tasks, while 80" rear-recessed, free-floating slip plates offer a wider range of 4-wheel alignment capacities.