help on a prop

Ok, I purchased a new prop for my boat off of ebay. I am going from a 17 pitch on my 115 johnson to a 19. Staying with the Michigan Rapture prop. Now, I noticed that the 17 that is on there now has a hub kit, the new prop doesnt need it as it is set up for my motor. I kept the back washer on but when i put on the new prop i lacked about a half inch for putting the nut back on because of the kit on the last prop stuck out farther. So my question is what do i do?? Do i need to purchase a new washer for behind the prop that is thicker and gets the prop out where it needs to be?? I know nothing about this so i need alot of help on this issue. Somebody please let me know what to do!!!

you will need a different thrust washer,find a dealer for the michigan props and they should have one or be able to get what you need.you may be able to order one online if they have a site.

Thank you, I was thinking that was what i needed but just wanted to make sure!

My advice, return that rapture prop before you use it, get a raker of the same pitch. Rakers perform the best on OMC motors. Having to add thrust washers and such just complicates things, a good raker will pull that raptures rakes off.