Have been reading some issues in these forums about shimmy problems, but mine is a stumper too, as it shimmys at all speeds but does it wildly hard between 55 and 65 mph, the shimming will let up when I let up on the gas pedal
Its a 2001 Forester, auto trans, with it more noticable when making right turns,
My mechanic could not find anything loose or wobbly, when I had him inspect the front end. He now believes that the cause may be in the transmission.
The suv has all new tires, new front rotors/pads,
I really need some good insight here as I dont really want to take( and get taken by) a transmission repair shop