Yup, said check the blades first.
However, if the blades/shims are OK the age of the vehicle suggests potential chassis weakening... Mine's not the only one! At last year's Mallory track day I spoke to an owner of a '73 whose car had suffered in exactly the same way as mine. OK, UK weather and road treatment not renowned for cars being long lived (at least in those days) - Ozzie climate much better for that! 18 to 20 years since I passed through Taree - think the sun was shining...
Meabh, you may well be right. At the time my bars were fitted we were still trying to eliminate the source of the shakes! Best to that before modifying, methinks...
Cheers,
