Add to Wishlist Zinko ZJJ-10011 100 Ton Steel Mechanical Journal Jack Zinko ZJJ-10011 100 Ton Steel Mechanical Journal Jack 100 Ton Steel Mechanical Journal Jack, 4 inch stoke, Minimum Height 12.25 inches. Beveled ring gear interlocks with the precision forged pinion to provide shifted tooth actuation... MSRP: $8,020.00