Whilst in and under there I wanted to take look at the driver side rear wheel...It has a slight play to it which I suspected was the bearing.
Both bearings came out ok, but the outer bearing was very loose in the hub...I read that this not uncommon, but this one would fall out with the gentlest of taps on the hub.
So I center punched the mating surface and then applied some Loctite bearing retainer and left overnight.
Next morning, after the bearings spending a night in the freezer, everything pressed together ok.
It's better than it was, but the play is still noticeable, even after getting the castle nut up to 250 lbft ! Next step is top start removing some potential other culprits of noise / rocking actions...Roll bar, shocks etc...