MerCruiser 43-96084A4 Pre-Alpha One Lower Unit Gear Set Forward Reverse 1970-82 steering wheel You can look for a

You can look for a marking mentioned in the above link that will help you identify what you have

No Cracks or Welds & This item has been cleaned & repainted

Shift Detent Lever: 323946

301930 031930

MerCruiser 43-96084A4 Pre-Alpha One Lower Unit Gear Set Forward Reverse 1970-82 steering wheel You can look for aItem Details MerCruiser Sterndrive Alpha One Lower Unit Complete Gearset 43 96084A4 (Pinion, Forward, Reverse) & Bearing Carrier Used in MerCruiser MC 1, #1, "R Drive" lower units 1970 1982 (If your driveshaft HAS A PRELOAD PIN then these are the CORRECT parts, if yours does NOT have a preload pin (1983 1990 drives), then these are NOT the correct gears) The time period 1970 1982 should be the time period that covers when the drives still had the