Hi all,
I too had the same problem and still do until now i hope...My mech has found that it must be the Lower Suspn arm, have since been to Lexus Croydon and the price they told me is about 117 pounds just for one side...I've been though every thing on checking my car from wheel bal, to caliper, and have even changed my Front discs and pads including the rear...I will order them unless someone knows where to get it from any cheaper.....
Steve
Ps the guy at the Parts counter at lexus croydon said that these will cause a wobble in the steering when braking ..incase any one wants the part number here she is " L48670-53010"