I have a 2007 6 point frame. I've been taking it apart to get it resprayed and got everything off except for the lower link. The only thing not budging is the pin that connects the lower link to the rear triangle. I have tried hammering it out using the bolt from the opposite side. It moved about 10mm but will not move any further. I've already messed up the treads on the pin. Is there anything else I can do to remove the pin?