When you get into the 30" slicks and retarded HP/TQ levels then the 4-link would be stronger 9 times out of 10. I would venture a guess that the 400-500hp /500-600tq trucks would have a hard time breaking anything, BUT it is massive stress on the 3rd link and its attachment points.
Either way the 3-link is as Tim would say "Pimptastic".
