45” L TO R OVERALL. 16” F TO B BETWEEN THE POSTS. (THERE IS A ½” TALL RING AROUND THE POSTS. L TO R BETWEEN THE RINGS IS 37” AND F TO B BETWEEN THE RINGS IS 13 ½”). 17” DIA. MAIN RAM RATED TO 3000 PSI. ADJUSTABLE DAYLIGHT FROM 27” TO 60”. APPROX 22” STROKE. 5” DIA. POSTS. FULLY GUIDED. APPROX. 2 ½” DIA. HOLE THROUGH THE CROWN. TEE-SLOTTED SLIDE AND CROWN. TWO 4” BORE SINGLE-ACTING PUSH BACK CYLINDERS 51 ½” OPERATOR HEIGHT. FLOOR STANDING. OVERALL DIMENSIONS: 40” X 80” X 139” TALL. ASSEMBLY DRAWING. (ITEM #38, 39)