It isn't anything new but i guess it is time i asked the question. My G-52 won't downshift from 4th into 3rd. the shifter won't go into the gear like something is blocking it. It doesn't grind at all, no noises. Could it be a syncro (sp?). I have a manual transmission class this semester for school and i need a project. If i have enough money i can rebuild my tranny at school. was wondering if anyone new what exactly is wrong with it. Would the rebuild kit from Marlin fix it?