It's more with car passenger tires, I've dealt with it first hand, a Michelin from Walmart and a Michelin from discount were different tread patterns and sidewalls, although they had the same name, speed rating and everything. Idk why but some are like that. And tire companies have contracts with tire shops for certain tires. That's just the way it is, not knocking walmart tires, I've bought tires from them, and I didn't have any issues but in just saying shop around and make sure you are getting the right tire.
Sent from the MOPAR gods!