Well I'm somewhat stumped as I could not find anything obvious over the weekend with the pry bar. TRE's seem fine. I did not put a wrench on the steering arm bolts but visually they looked good and I did tighten them back up post CM12. I guess I need to pull the wheels and do a complete inspection on jack stands this weekend.
Its still hard for me to accept I may have overheated the brakes. After many trips with an un-braked trailer behind me I have never got them hot. A casual trip to Silverton should not have worked them that hard.