[Jack21]

Thanks fellas. Haven't noticed the other harmonics (3600 - 5200) yet. Trans, yoke, and mount are new so they should still be tight. So far, it's just noticable. If it gets worse, my 393 stroker upgrade may come sooner than expected. Using the FMS billet SFI front damper with the bolt in insert. Wondering if that might have something to do with it? Any experience with this?