I am the new owner of a 1950 3100 that has had a 250 and TH350 installed. I am seeing that the transmission is touching the firewall in the tunnel. The truck is at the point where it has not been driven as it does not have accerlator or shifter hooked up. I am wondering if there is anyone out there with experience in this area that knows what I am headed for as far as vibration while driving if the transmission is touching firewall?