i just bought a set of federal mud tires for 2004 2500 HD, got em financed at trax tires in mobile for 1k, really hurt my feelings.. that included nitrogen on all tires, mount, balance, and "complimentary" roadside assistance, it was 100.00 on my recipt, if you use Trax tires..look at your recipt before you leave! overall Federal makes a great tire.