Hey off-road Jato, did you try what The Real Dogman suggested? Make sure you follow the instructions correctly and it will work, if it still doesn't then you might want to dismount the transmission and make sure that everything in there has screws tight and on the correct places. Sometimes the clutch shoes get debris in between them and scratches the face of them, causing them to work unproperly. Also make sure that your engine is correctly tuned to reach the maximum RPM neccessary for it to shift into 3rd it should sound like this: [link=http://uk.youtube.com/watch?v=pe6vIz1veiQ]CEN GST shifting video[/link]. You can get the tuning document from [link=http://www.rcdocuments.com/?page=1]here[/link], use the NX-76 one.