I have had some pretty big loads on my Alcoas and adaptors with no problems. Trust me, if you do something to break one of these adaptors, the adaptor wont be the only thing broke! It would take some serious stresses to hurt them.
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2006 DODGE RAM 3500 - Silver, Reg. Cab, 4x4, Dually, 6spd, Quadzilla X2 Race Module, CFM+ Intake, AEM Workhorse Intake, Banks Monster Dual Exhaust, MBRP Cat. Delete Pipe, Isspro Gauges, Air Horns, ReadyLift Leveling Kit, 22.5" Alcoas, 255/70 Sumitomos.