MerCruiser Propeller Prop Shaft 44-66060 Alpha One R MR Gearcase 1977-1990 85hp but this is up to

but this is up to your discretion

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please see pictures for best idea of condition

If you are unsure on which year your unit is

MerCruiser Propeller Prop Shaft 44-66060 Alpha One R MR Gearcase 1977-1990 85hp but this is up toItem Details MerCruiser Propeller Shaft 44 66060 used in all R MR Pre Alpha Gen 1 Alpha 1 lower units 1977 1990 In a nutshell Replaces: 44 66060, 44 66060 3, 44 824110, 44 860308 For all #1 & MR ALPHA Units S N 2791957 & above. Also for 165 (6 cyl.) S N 2763442 & above. They used the same lower gearcase with all of the engines so you're particular engine is not applicable so this basically covers (120hp 140hp 4cyl 165hp 6cyl 170hp 305 350 470 2. 5L 3.