I have a '88 Alpha 1 gen I outdrive that is progressively getting a shifting problem. Last year, my lower shift cable went bad (corroded enough so it wouldn't go in reverse), due to loss of the welsh plug on the OD. I fixed the welsh plug, and installed the new cable and everything worked well (3+ months) until winter shut down the season. This spring I needed to adjust the lower shift cable to have both reverse and forward, but it worked OK for 2-3 months. Now after some more fine tuning, I just bearly have forward and reverse. It seems like it takes more cable travel to reach both gears than is available in the shift mechanism. If there some adjustment I overlooked, that extends the "throw" of the cable? Is there some part that wears out and causes this behavour?