Older Mercruiser Outdrive

[FreeBeeTony]

I may be buying a '78 Grady White with a 250cui IL6 that HAD a MR1 outdrive. The boat does not have a drive at all. Will the newer Alpha One drive fit directly into the original transom mount? I have also heard problems with the shift mechanism on the older drives. Any information would be appreciated.......<br /><br />Thanks

 

[Trent]

Re: Older Mercruiser Outdrive

Alpha 1 will fit. But Alpha I Gen II will not. The "MR" drive was not made back in the 70's. The pre-alpha or "R" was made from 1966-1983.<br /><br />Check this out maybe this will help you some??<br /><br /> "R" Drive

 

[FreeBeeTony]

Re: Older Mercruiser Outdrive

Thanks Trent........that site is helpful.<br />So from what you've said, tha Alpha 1 will fit directly into the original transom mount. Is this correct?

 

[Bondo]

Re: Older Mercruiser Outdrive

The Alpha1 is a direct bolt-up, Except, the input shaft Must be switched to the Shorter(8"+) Mod.1(R)shaft.... Other than that, It's a Drop-In.....<br />The Only Shift problems I know of are Worn,Sticky lower shift cables.. Easy Fix... Change the cable...