We use many diffrent processes for installing the pushrod ends.Many time we have to run a ream through the heavy wall hemi pushrods we get from Indy and also put a slight champhor to help get the end started. We also have different length aluminum mandrels with holes for the push rod to keep it from flexing or bending.We use an aluminum seat pad for the finished end to set in and an aluminum pad at the cup end.We use a small aluminum(home built)press frame and small hydraulic puck cylinder with hand pump.It works great for us.Once we determine the proper length we rough cut the excess on the saw and do our final cut to size,champher and ream on the lathe.