I've been driving my 46 Chev for about a year now, I replaced the Kingpins and that seemed to get rid of most of the vibration. I got tired of double clutching and 45 mPH top speed soI replaced the old 4 speed tranny with a Borg Warner T-5, 5 speed. I can run 70 MPH now but it's scary because I still have the old drum and shoe brakes, it's hard to stop. I'm chasing different types of vibrations now!
