Recommended rim sizes for most 33x12.50 tires is 8"-11". You'll be fine.
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'03 Black 2500 QC/LB 4x4, 6 speed, 2" lift, black/machined H2's, 305/70 Nitto's, B&W turnover, 5" str8 pipe, BHAF, 2nd gen intake, BD lift pump, spin on filters, airbags, pillar boost & pyro, SMARTY, .....and stock clutch ... for now