So this is my third post about this and I haven't fixed it yet. After a clutch job two summers ago I've had this horrible vibration at high speed not rpm dependent just speed dependent. We bought the flywheel from oreilys we changed everything but we did not change the pilot bearing or atleast I'm pretty sure we didn't I can't really remember. We also changed the crossmember to the ford performance one. This vibration starts at 50 or so and get progressively worse. It feels like it's just gonna come apart it does it when rolling down hill too. I've already had my ujoints done by a shop and a rebalancing on my aluminum driveshaft. I already have the aluminum driveshaft I have my wheels balanced because people always say those two things. I'm lost I have no clue what to look for or anything. This is driving me insane I'll honostly do anything for someone to tell me the fix to the problem. This was after my clutch job but I thought if say the flywheel was out of balance or the pilot bearing was bad it would be rpm dependent not speed in probaly wrong I don't know. If someone can please help me that would be great. It drove fine before the clutch job so it shouldn't have anything to do with the axles cause we didn't touch those