https://www.5startools.com/tools-1/10-ton-10-inch-stroke-hydraulic-ram 10 TON 10 INCH STROKE HYDRAULIC RAM AUTO BODY FRAME MACHINE/ PULLING POSTS WITH COUPER CLOSED LENGTH: 16-3/4 IN CLOSED LENGTH W MALE ADAPTER REMOVED: 15-1/2 IN FULLY EXTENDED LENGTH: 25-5/8 IN (W/ADAPTER IN PLACE) 1-1/4 female NPT BOTTOM 1 INCH BOLT FEMALE THREAD IN SHAFT TOP COMES WITH 1 INCH MALE BOLT THREAD X 1-1-1/4 NPT MALE ADAPTER THREADS ON BARREL 2-1/4 inch - 14 PITCH - 1 inch long DIAMETER 1-1/4 - 2.2360 - 56.75 MM The bottom has a 1-1/4 inch female thread and it comes with top male 1-1/4 inch thread works on almost all auto body frame machines. Tel : 773-225-5979 KEN