yeah, it's a cheap fix...can't remember if the repair kits at Academy come with instructions, but it should be fairly easy reguardless if you get the schematics.
not an Abu, but I've replaced all the drag washers on my old shimano's using the kits academy sells, and I knew nothing of working on reels before.
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Looking at this and not thinking BOOM!!! is like trying to eat one Lay's potato chip