Ok, 99 lumina ltz, 3.8. I have just ruined my SECOND rear main. Thats 24 bucks down the drain. Im following directions, but they seem to catch. The flywheel cracked and nibbled on the cover some, but i have cleaned up the edges that catch. Even the old seal was crooked.

Do you guys have any tips or tricks? I tried heating the cover, and freezing the seal but no go.