can\'t find it! I'm desperately searching out a wicked vibration in my blazer. I've replaced my u joints, the rear yoke (which was toast). I've had my wheels re rebalanced (discount tire hates me). Yesterday I replaced the tail shaft on my np 208 tcase. Found that the oil galley behind the seal was toast. Sealed it back up. The vibration isnt as bad but its still there. My only option left is the pinion bearing. It wasn't as noticable before I got my new tranny but it's near the back so I'm not thinking tranny right now. Could the drive shaft not be aligned? The tcase need aligning? Lemme know what you all think. I'm losing sleep.