Mine has started grinding going into 4th gear. Is this the same issue or similar? should I be looking at something different all together? 1950 3100, 4 spd trans. I believe the transmission is a 1952. The other gears seem to work fine, though it seemed I almost had to be at a complete stop to shift down into 2nd but that has happened off and on in the past so I'm not sure its related.