I know, there's lots of this stuff out there. And I know, this is my square, but many of you are running a TH350.
Over the 8 years I've been driving my square, I've been chasing nasty vibration that have made me hate the truck more and more. I
think I've finally fixed it - worn thrust washers and end play in the TH350.
Some of you might find this useful/amusing.