Shaft Mercruiser→Drive Shaft→MC-1

Part # & Price	Description
BPI11110 $329.95	Drive Shaft Lower Unit for Mercruiser #1 with Preload Pin 1974-1982 45-51939A1 Vertical Drive Shaft for a Mercruiser # 1 drive. This drive shaft is easily distinguishable because of a preload pin at the top of the shaft. The pin is about .250 in diameter and about .650 long. It will not fit MR Alpha drives. This item replaces Mercury Marine Quicksilver #s 45-41939A1, 45-41939F1.
GLM11110 $329.95	Drive Shaft Lower Unit for Mercruiser #1 with Preload Pin 1974-1982 45-51939A1 Vertical Drive Shaft for a Mercruiser # 1 drive. This drive shaft is easily distinguishable because of a preload pin at the top of the shaft. The pin is about .250 in diameter and about .650 long. It will not fit MR Alpha drives. This item replaces Mercury Marine Quicksilver #s 45-41939A1, 45-41939F1.