Just took another motor apart this morning that has several issues, I'll post step by step instructions on how I go about repairing it. Remove the motor from the housing (scroll down to see assembly process and reverse the order), next remove shear key from the slot in the axle.     Remove the half clip    Remove the 3 screws, they are tight so take care not to strip them out.   Slide the gear off   Use c-clip pliers to remove retainer  
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