Hi have had a vibration which seems to be coming from under the seat when doing above 80 kph.The tail shaft has been balances twice and the vibration dos.nt seem to be coming through the steering wheel so I dont thinks its tyre balance.
I have a 4 link rear suspension set up and I originally set it up correctly but I 'm wondering if the angle is out now.I do have two adjustable rear bars that I could use to change the angle.What do you think
PS: The uni joints are all good
The car is a 32 ford roadster