I have a early 70's style boss block, YSI Blower (700hp) in a Mustang which has a two piece rear main seal. I have replaced the seal twice and it leaked AGAIN!!!! I am using a Fel Pro BS 30136 Seal. The old seal was just basically weeping before, but I wanted to replace it at the same time as the clutch and now can't get it to seal at all. Does anyone have any ideas hot to get this stupid thing to seal up
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