the seial number on lower unit is 2966480 it is a mercruiser the number on the engine is the same except there is another tag on the back of the block that says 296067. my question is what type of outdrive do i have? i want to put in new bellows gimble bearing shift cable gaskets and seals as i am restoring the boat that was given to me. on top of outdrive is a loop and to remove hinge pins ...well not sure how to do it i have read u need special tool but mine look like they are threaded holes any help or advice would be appreciated