"TIRE SPECIFICATION IS RESTRICTED TO MANUFACTURE, GOODYEAR WRANGLER RT II. ADDITIIONAL MANUFACTURERS MUST BE PRE APPROVED PER SAE J 2014. USE CAULKING GUN 2640-01-419-6200 USE RUN FLAT DEVICE 2640-01-371-8332; YOU CAN ORDER THE A2 WHEEL KIT (NEW CONFIGURATION) 2530-01-443-3405 INCLUDES SELF LOCKING NUT, VALVE, INSER, O-RING, RIM ASSEMBLY, VALVE CAP AND CORE"