Everybody makes them. When I was a maintenance man at Armstrong Rubber Co. in Nashville Tennessee, we made 4 brands of radial tires from the same molds, with the same rubber compounds- - - -we just changed the labels in the molds for Sears, Western Auto, and a couple of store brands for different retailers. You can shop any of the online tire dealers for a "LT" (light truck) rated radial tire in the size you want. LT tires are the equivalent of the old "6 ply" rating used for light truck applications, with a higher load rating than a passenger car "P" rated tire.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!