After I looked lore closely I realized my issue wasnt the plate but rather the bracket started gapping away from transom in spots. Might have been bad caulk job finally giving out or wet transom morphing. I know the transom is a little wet so that likely is root cause. I'm trying to get another summer season and replace transom this fall. So I put 5300 around outside of bracket. First time it didnt stick so next time I did a lot of prep to remove bottom paint and other grime. Now I don't know if it will ever come off.