Hey all, just finished boxing a set of trailing arms for pvk308, he seems pretty happy with them, so I thought I would go through the process and explain what I did. feel free to add any comments as you see fit.
first, I measured the arms for fit, with the suspension under load, I did this to work out clearances for the boxing:
first, I measured the distance from the end of the arm to the spring location on the commodore.
to back this up, I also measured the spring diameter.
Steve wanted the arms as solid as he could get them, so I checked the spacing between the spring and the rubber mount so I could put a brace between them.