I have a 1973 Sportwin. Gave $150 bucks for it. The shifter would not move so I dropped the gearcase unscrewed the lower nut on the shift rod and pulled the lower unit. The shifter handle on the top end of the motor moved freely now, so I attempted to move the shift rod in the lower end with pliers. Its frozen. I removed the gear from the lower unit. the only thing left in it is the shift rod. It will not budge. Sprayed PC blaster, tapped on it all different ways, still frozen tight. How do I get the rod out without bending it up. It seems like the only way to do it is beat it out. ????