Just got an 04 silverado ss victory red with 102k miles. Already had some mods done to it. Its got obx racing 1 7/8in longtubes, corsa sport exhaust, aem brute force intake, 8.1L fuel injectors, ls7 lifters, 7.4500 hardened chromoly pushrods, .600 lift valve springs, comp cams xr275hr cam, and a charlie wheatley tune assuming its just a base map. Never been dynoed or track tested yet. Unfortunately i lost 3rd gear this past saturday. Im taking it to CPT(cahall performance transmissions) in delaware this saturday to get their ultra pro race trans along with a protorque 10.5 billet single disc 3000 stall converter. Ive heard the front diffs are the next weakest link. What upgrades has anyone done to the front differentials? Or other upgrades at all that they recommend i do next?