In the process of changing the idler arm with a Drake item and the bush seems unusually tight. The old one virtually fell off and I have cleaned up the arm on the drag link with fine emery paper, greased it and do you think i can get this new arm on!! I had partial success using a g clamp to press it on but i dont want to use too much force. Should it be this tight? Doesnt appear to be any burrs on the sleeve of the new unit. Any help would be appreciated