So I went to NAPA this morning to pick up the SKF-21771 rear bearing seals. I brought along a 1/4 hex bit to test the seal which actually measures 0.247". It fails the test as your can see in these photos. http://www.gmcmhphotos.com/photos/g7044-skf-21771-rear-seal-fails-test.html Any ideas?
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