hey guys. I hit a submerged rock. Ouch. I need a new lower unit and i dont know which years and horsepower units will be compatible. My motor is a 135 h.p. 1989 mercury black max v6. if anyone knows what lower units are compatible. there are a few on ebay at 150 hp and 200 hp from the 1990's but i dont know if they are all the same?!! I'd greatly appreciate any info\advice you guys can give. Thanx Erik
