Hi Guys,<br /> My situation is I purchased a 73' 402 merc, one of the blades was damaged and the previous owner cut all 3 down to attempt a repair. It's now bout 7.5" dia. Looking around I've found that they changed this range of prop in 74' to using a thrust washer, is it possible to use the newer props on my motor or am I stuck with one of those rare ones that cost a fortune to maintain. I've not put this motor to work yet, it seems to run great (after some TLC) but I'd like to have it right before I do. I am a novice boater to say the least so any help would be greatly appreciated. lakelvr