prop installation

[fishin' dude]

'83-85 DT15 Suzuki 2 Stroke - Bought a new prop cause the one on the motor when I bought it was cracked and bent. When I pulled off the old prop I find what I believe to be the prop stopper is missing. Since I'm unfamiliar with this motor I wanted to make sure I was looking for the correct part, my not so intelligent question is: Does the prop stopper simply slide over the prop shaft, much the same way as the prop nut spacer? That is, it's not a press fit part. And is the prop stopper splined (from the few pictures I've been able to find it seems it is not splined)? OEM part number i s57632-93900, superceded by 57632-93902. I've seen prices from $18 to $86 for this.

Thanks in advamce for any help/info.

[boats.net]

The rear thrust washer sometimes will get stuck in back of prop and have to pry it loose.