high speed viberation
i have turned the rotors
balance tires
rotated tires
used differant rims and tires
new u joint
checked all nuts and bolts
adjusted exhaust
i thought i had it figured out to day. the headder was toutching my motor mount but that didnt fix it.
it starts around 60mph and gets worse from their. could the gears being too loose, too much back lash cause that? it was built at drive line sloutions. i guess the lastthing for me to do is have teh d/s ballanced got any other ideas?

