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Prop install and prop size

birdy916

Member
"Hey guys, i currently have a

"Hey guys, i currently have a 1979 with a gm 305 v8.
i'm not sure of the the outdrive.
my current prop is bent here n there.
so i want to replace it.
rite now i have a michigan ssm354-c 15 1/2x19rh
my bro got me a prop
only numbers i see on it is "5006 19" on the side.
and within the blade is 15 1/4x19.
is that prop ok?? as in it fits??
i kinda took off the nut on my old prop.
it looks different from the new one.
i took a few pics.
this is the thrust hub correct??
<img src="http://c1.ac-images.myspacecdn.com/images02/83/l_2359bf86f9674491bec73a21c6d82b9 4.jpg""></img>
the front of the new prop doesnt look like it goes with that thrust hub.
<img src="http://c2.ac-images.myspacecdn.com/images02/67/l_1742eedac4bd44e8af0f439e093cf43 5.jpg""></img>
do i need a different one??
doest look like i have a tab washer either correct??
<img src="http://c1.ac-images.myspacecdn.com/images02/102/l_22b03bd9295449e187ad3f32b36711 64.jpg""></img>
this is wat my old splined washer looks like.
<img src="http://c3.ac-images.myspacecdn.com/images02/80/l_4882ca9b2806497d9d39d885eef2d95 2.jpg""></img>
and this is the new one
<img src="http://c3.ac-images.myspacecdn.com/images02/74/l_d399787f015446a3b4cd8d7b36518f3 e.jpg""></img>

wat things do i need to put this new prop on??
also i'm gonna need a new trim tab.
which one will fit since the new prop hits the hold one.

my boat is a 17ft trihull
at wot with 3-4 passengers.
tach reading 3300 rpm and speedometer n fish finder says i am going 32mph only.
wat prop size can i achieve my wot rpm and get more mph??

thanks for ur help folks!!"
 
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