I have an Alpha 1 outdrive. Problem, I have reverse and neutral but no forward. I have the outdrive off and my shift cable slide does not look like the one in the manual. It does not have the bearing on top. I have all gears when I have the drive pulled just a small bit away from the boat and the lower unit works great. Could the wrong shift slide be keeping the drive from going into forward and causing the slide to hit the bell housing and jamming?