just my 2 cents for anyone having grinding sounds while accelerating...

if the VX has less than a 1% rake from the rear to the front it will cause drive axle problems....so try lowering your front end a few twists....you wont have as much lift but it also wont break your ride....

i know a few others have had grinding problems before and it has turned out being that the front of the VX is taller than the rear...causing a bad angle for the drive axle....

just a thought...