Had a right rear wheel bearing failure. I now have a "whine" in the 50-60 MPH range. Wheel hop is bad. Many aftermarket vendors are working on it. Katech in Michigan has installed a mod on mine and improved it 80 - 90%. They've also changed the clutch and put in a short throw shift that is FABULOUS!!! Last year ran at Milan with an "almost stock" V. Best time was 13.3 @ 106 with severe wheel hop.