My transmission- LS with LSD If it's in gear, you can hear a sound like gears turning really fast. BUT- it acts normal at one light and then I can't find any gear at the next light. When in neutral, if i push in the clutch the wirring noise that i hear gets quieter. With the clutch out it sounds like somethings loose, like a bearing... I was thinking it was the input shaft bearing. The transmission was just rebuilt less than a 1000 miles ago, and was flawless untill last night. I did not grind the gears or anything... what could be wrong? the noise that I am hearing sounds like dry gears spinning, but my gearbox is full of oil. Uggg its the sound of money being spent I'll bet. any ideas, have u heard or had something like this happen to u?