I would advise AGAINST reusing the headgasket!Make sure you check out the crankshaft as well as the engine block itself.
As for the vibration in the drivetrain, check and see if the tranny mounting bolts are tight first.


There is enough good in the worst of us and enough bad in the best of us that it does not behoove any of us to criticize the rest of us.
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Be yourself. If you are ever lost, It will be much easier to find yourself if you know who you are!