I agree with Richard. The old stringers were a great drive when they worked. Their downfall was keeping the shift cable adjusted properly, which if not maintained correctly would tale out the 'ball gear"

Besides, the out drive was solid to the engine. The trim mechanism actuall lifted or lowered the front of the engine. Weird way to do things.

Honestly, those OMC stringers are way obsolete and parts are not only rare but very expensive.