No I didn't - 5 months and 4,000 miles - here's my letter to the supplier:
Hi,
I purchased a pair of the upper arms for my Lexus LS 400 from you on February 11th this year and had them fitted by my garage a few days later.
Whilst I was in the garage today (Brake pad fitting), my mechanic noticed severe wear on the ball joint on the N/S unit (Mot failure), and that both ball joint rubber covers were completely perished therefore allowing water to penetrate the joint.
Both these units must be faulty as my car has only done around 4 thousand miles since fitting.
I would like to respectfully ask for a refund for these items, as I would imagine that a similar failure would occur with replacements.
Many thanks.