Thankxxx man. Did some research today on nodular iron vs factory cast iron and the nodular seems way stronger and Dr. Diff agrees and for $300 bucks w/billet caps and adjusters, I can`t go wrong and don`t want a truck or ford rear under my car. Mine has lasted longer than most into the 9`s at 3200+ lbs w/30 spline axles so this along w/35 spline axles, a new spool and around 3000 lbs.(for now), I should be golden...........