I had a rod that would not come apart. Tried everything, heat, spray lube, ice , pull with two people etc ..... nothing worked. Read about the behind the knee method (you tube) and it did not work but I had a poor grip . Then I remembered the flex tape, stuck rod in freezer, flex wrapped either side for grip, used the behind the knee method and presto it came apart with no problem. Try it. If you cant get rod in freezer , use ice and let the joint get good and cold.