I8NEMO said

Here's a visual showing the slight difference between the correct and incorrect bearing retainer ring. Correct ring ( left) has the smaller diameter/ shorter section height. If a guy's not savvy or in a hurry I can see where the taller clip could get installed mistakenly. An Incorrect bearing retainer clip prevents the retainer housing from mating against the gasket in fact, in rides on the bearing retainer clip guaranteeing a leak. A good way to check is slide the retainer housing on without a gasket and make sure it mates with the gear box housing, there should be 0 gap. I got the correct bearing retainer on from Brewers this morning, perfect fit.

Thanks Dan

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