The unique AEV Jack Base creates an additional 3-1/2 inches of lift clearance for the factory Jeep Wrangler scissor-style jack. This allows for tires sized 37" or more to be changed with ease and extra stability. Most people are unaware that the factory jack will not reach the heights needed to accommodate larger tire sizes, often resulting in the inability to perform an otherwise simple task. The large 7.5" x 10.5" base provides enhanced stability in rough or soft terrain. Integrated compartments within its base let you store an AEV lug extension and your wheel lock key. This jack accessory is designed specifically to fit within the JK's rear floor storage area and easily doubles as a wheel chock for your vehicle or trailer.