Hi Dave, i have the same car, a steering shake after replacing tie rod end ,bottom outer ball joints and an annoying shake at around 60 kmh. I had heaps of movement in Rh front axle at diff so i replaced the diff, no difference.have balanced all tyres several times ,even replaced perfectly good front tyres thinking they must be the cause, front and rear shocks, tailshaft centre bearing,shake still there. Not sure what to do next maybe cv shafts. Strange thing is its not bad at speeds of 80 km or better ,worse at 60 ks