Contact your local dealer and let them know what parts you will be needing. They will then get in touch with the factory and order the parts. Unfortunately the factory is not set up to sell parts direct to the retail customer at this time.
I can feel your pain on the damage caused by the blowout you had.
Had a tire blow and did about 4500.00 in damage to the right side above the tires.
I ended up buying 4 Michelin XPS LT tires.
I hope you're back on the road soon.
2020 GMC Duramax-3500HD 4x4 CrewCab B&W Companion 25K Fifth Wheel Hitch
2010 Wildcat 28RKBS (West Coast Model)