22 years ago I installed a 20,000# MEI hydro freight. Rise was over 40', jack was 4 sections. Trying to recall how the Eeco pistons mated, I am thinking there were 2 long threaded rods going through each section to mate it with the piston section below it. Cannot recall the jack diameter, it was rather large, thinking at least 14" in diameter. The top piston section has "seperated" from the section below it, maybe a 3/8" gap between the two sections. We are hoping it has these rods and that the rods have merely loosened up over the years. Anyone had a similar issue?