I just replaced the clutch,TOB,pilot bearing and flywheel in my '95s nv3500 and now with the engine on it grinds when I try to shift into any gear-with the engine off it goes into each gear fine though. Reason for replacing was my TOB was going bad. All parts were the same as the stock ones and went in fine, everything was torqued to specs and the slave cylinder wasn't disconnected. Is there a chance it could just need to be bled? Sounds as if the clutch isn't being released all the way.