I've studied alot of posts at various sites and am ready to do a single prop to duoprop conversion on my 86 Bayliner 2855. With the 280 drive, what model drive lower will fit? Is it only a 280DP or will a lower from a 290DP, DP-A, DP-B, or DP-C fit as they are all grouped in the same Volvo technical manual and the repair procedures are very close to the same. I'm going to start looking for a used drive and need to know exactly what to look for. With a AQ260 I know I will need a 1.98 ratio but what model? Any help will be appreciated. Thanks
