- Mercury drive shaft picture on the left has per load pin located at the top used on early 50, 60 and 75 hp. lower
units with 3 cylinder powerheads
- Shaft on the right is used on later models
- Pinion bearing journal ø:
refers to inside diameter of bearing or shaft size in one place on the drive shaft above the tapper
- Check drive shaft
length, pinion bearing diameter (journal) and pinion gear splines before ordering
- Drive shafts will have 11, 13,
14 and 17 spines
- See our water pump kits page for pump housings
- Mercury lower unit parts drawings click here
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