WOW! Having seen
HTTP://www.wmsracing.com/pgi-Product%20Spec?WMS-RLA79M
these control arms, I can say they are VERY much worth it. Sherical rod ends, AND spring perch adjustability. Griggs sellss stuff dor $500 for nearly the same features.
Personally, I would go with these arms, and a panhard.
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Darius Rudis
Roadracer: Home built t-arm/panhard suspension powered by an S-trimmed motor :-)
My Mustang Page