Need a new plastic gear in my wiper motor. Products are confusing on Ebay, Ordered one for a 2 speed but it's too small and apparently for the canister looking motor. Other say for a 3 speed, but I think mine is a two speed. Others I find have a park switch modification which changes the cover, don't want that. Any info on a source for my gear and correct replacement part # would be appreciated.

Part # is 3431077.