8.75 question

So as I drive my car more the 3.55's whine is just driving me nuts. So I dug out another case and I'm going to put this 3.23 back together that gave me problems in the beginning. I took @john-9 advice and my pinion gear has a radius that does not let the front small bearing seat against the pinion properly. I took a grinder and put a chamfer in the bearing so it slides down all the way now. I'm sure this is what caused the problem with this set when I put it in the first time. As soon as a couple things show up I will be ready to put this together and hopefully it will be quiet...

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