Sooo here in Texas the toll road speed limit is 85mph so on a daily basis I'm over that speed and closer to 100 and more. My observation and question is: from basically 85mph and up I can feel a very tight vibration coming from what seems to be the rear of the vehicle. I wouldn't pay much attention to it if my rear view mirror wasn't shaking to the point that I can't see what type of car is behind me. Side view mirrors are perfect....no shake at all. The vibration is 100% speed related not rpm...5th and 6th 85mph and higher. Maybe it's just me and I worry about nothing but does anyone else notice this at high speeds? I know it's a hand built car and I'v retorqued my wheels even though I'm sure they went the problem and retorqued underhood X brace .
No steering wheel shake at all.
No brake shudder at all.
Perfectly smooth under 85mph.
Thanks all!
....and don't everyone at once run out and blown down the hi way at 150 mph to see what I'm talking about.