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View Full Version : when did MC go to a splined shaft?


TallRedRider
08-28-2009, 10:40 PM
So I am trying to sell a spare prop. One prospective buyer with a 2005 Xstar said he can't do it because he has a tapered shaft. He did not know what shaft he had when he initially called and the boat was at his brother's house. For future buyers who don't know what shaft they have, what year did MC go to the splined shaft?

bigmac
08-28-2009, 10:46 PM
I don't know the year they switched, but I do know that the 2005's came from the factory with splined shafts.

erkoehler
08-28-2009, 10:51 PM
My GUESS is 2003.........just a guess though :)

SPBFAN
08-29-2009, 12:14 AM
I know of a person with an 04 that has a tapered shaft. And another of course with an 07 that is splined. The splined shaft is a great idea for securing the prop to the shaft. You just have to make sure you get it absolutely square when you center it on the shaft while tightening the nut.

bigmac
08-29-2009, 05:55 AM
I know of a person with an 04 that has a tapered shaft. And another of course with an 07 that is splined. The splined shaft is a great idea for securing the prop to the shaft. You just have to make sure you get it absolutely square when you center it on the shaft while tightening the nut.

Must be an aftermarket shaft. MasterCrafts didn't come from the factory with tapered shafts in 2004. Why anyone would replace a spline shaft with a tapered one is beyond me, though.

Jerseydave
08-29-2009, 08:35 AM
My buddy's 2001 X-star has a tapered shaft with a keyway.

My 2003 Maristar had a splined shaft.

Maybe 2002 was the first year for splined shafts??

g-Dog
08-29-2009, 11:51 AM
My 2002 205V has a tapered shaft. I believe splined shafts started in 2003.

BGcraft
08-29-2009, 11:54 AM
My 2002 PS190SD has tapered/keyway shaft...maybe 03 first year with spline??

Prop still spins fine on tapered btw!!

Age Fighter
08-29-2009, 12:56 PM
You would think this would be easy to get answer to -- apparently not.
My 2003 has a splined shaft and I believe I heard that was the first year. I bought it pre owned however so that's just hearsay.
Eric should know. He knows doggone near everything about the set up

east tx skier
08-29-2009, 07:05 PM
I think the answer is 2004.

03 35th Anniversary
08-29-2009, 07:34 PM
My 2003 PS 197 has a splined shaft.

I think when they started converting everything to splined shafts it depended on what trans was in the boat as to which one it would be.

AussieMC
08-29-2009, 07:37 PM
My 2003 PS 197tt also has a splined shaft.

Tom023
08-30-2009, 08:01 AM
Why anyone would replace a spline shaft with a tapered one is beyond me, though.

Having had I/Os and the ease of prop removal, I used to wish I had the splined shaft and I'm not sure why anyone would bother to replace a splined with a tapered either. However, recently I had an incident that illustrated the one benefit of of a tapered over a splined. I hit a stump, hard enough to shear the key and prevent any drive train or prop damage. Had it been a splined shaft I may not have been so lucky, or maybe it would have sheared the key in the coupler instead, I don't know. Probably it was a million to one shot but the tapered shaft and key did provide a little shock protection.

EJ OJPROP
08-31-2009, 07:25 AM
The change was made in 2003. I have seen splined bored props that have taken some pretty big hits with no damage to to the splines or shafting. The splined bore may spread the load over the 16 splines instead of the entire impact being absorbed by the 1/4 key.....just a thought.