Hi Mike,
I've had breakages in two places. The first was the pinch bolt for the track rod end, which broke where the threads start. When we removed the opposite bolt, it was cracked around the head and would have failed. Last weeks failure was the bolt that fixes the ARB to the bush.
Roxy is a Sunstorm spec car - so the springs were Sports Pack 1. Chris Flanagan fitted the Bilsteins which are at the lowest setting, so she's running hard.
I'll have a look and see if I can find the Roger Parker info.
I really appreciate your help.
W