Complete older style Bravo One, Bravo II and Bravo III drives are no longer in production.
Newer style Bravos have a different upper driveshaft housing design.
The following models have been changed:
Non-Current MerCruiser Bravo Sterndrives Serial Numbers
Bravo One and Bravo One X Gas and Diesel Prior to 0W249999
Bravo Two and Bravo Two X Gas and Diesel Prior to 0W249999
Bravo Three and Bravo Three X Gas and Diesel Prior to 0W249999