THIS IS A PRODUCT FOR SOMEONE WITH EXPERIENCE INSTALLING A CONNECTING ROD ON A PRESSED TOGETHER CRANKSHAFT. YOU NEED A PRESS,V-BLOCKS, BRASS HAMMER AND A DIAL INDAICATOR. IF YOU HAVE THIS PRO-X HAS A VIDEO ON HOW TO DO THIS. I AM A 60 YEAR OLD AND WE USED TO DO THIS ALL THE TIME BACK YEARS AGO. WILL SAVE YOU ABOUT 150 TO 200 OVER A NEW CRANK AND BE JUST AS GOOD OR BETTER IF IT HAS A CHEAP ROD.