BendPak JP-6 Telescoping Sliding Jack Platform / 6,000-lb. CapacityJust like the JP 3 Sliding Jack Tray, the optional JP 6 sliding jack tray doubles your capacity to 6,000 lbs. and provides you with the space to lift your car off any BendPak four post lift, giving the same instant access to your wheels that you would have with a 4 post rolling bridge jack. If you have a four post lift but want to be able to do wheel and suspension workor any kind of tire and wheel maintenancethen this Sliding Jack Tray is the perfect