Mercury Optimax 115, 135, 150, 175, DFI year 2000 and up service manual., Page 535Get this manual
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LEFT HAND NON-RATCHETING
14 Forward Gear Bearing Tool 91-86943
15 Pinion Locating Gear Tool 91-12349A2 or 91-74776
16 Backlash Indicator Rod 91-78473