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Measuring Mercury/Mariner Driveshaft Length

Joe Foster
posted this on February 16, 2010 12:10

To obtain length, measure from the top of the gearcase housing (base of the water pump plate) to the top of the shaft.

  • "L" driveshafts measure 23"
  • "XL" driveshafts measure 28"
  • "XXL" driveshafts meassure 33"