can you help me i am looking for some way i can identify my outdrive weather alpha 1 02 or bravo i have a 1995 2355 ciera bayliner I/O Merc 5.0 engine 8 cylinder no labels are left on it what is the best way to find out what outdrive i have looking to replace lower unit. and allso where is a good place to purchace it i live in philadelphia pa center city boat same place in summer in water