1985 Bayliner Ciera 255D (Volvo Penta 5.0 GM engine rplaced with GM V8 5.7) 24 ft Cruiser Volvo Penta Outdrive .... at top of Transom Housing is a Trapezium Shaped plate held in place by two hex bolts either side and pretty much rusted through completely - can anyone please identify what this is and its function? Looks like it might be almost 'welded' and prob difficult to replace. Cant find it in the Service/Repair Manual. Any assistance would be appreciated...... bertb911
