Hello,
Thanks for the replies.
1. We recently put on new wheels and tires (see gallery). They torqued to 75.
2. The shuddering has been there since we bought the car. So, we thought changing wheels and tires (we had to anyway because we put snow shoes on winter, all-season otherwise).
VH
03 X5 4.4
99 ML320
91 LS400
92 Prelude 4Ws Si
91 Galant LS