Exclusions: Get Free Ground Shipping on Orders of $75 or more or Free Shipping to APO, FPO, DPO addresses via USPS. Some Exclusions Apply. Limited time only! Exclusions: Free shipping offer not available on freight orders. These offers exclude shipment of gift cards and enhanced shipping options, such as next-day air, second day air or freight (freight may apply to overweight/oversized items). These offers are limited to in-stock items and items offered for sale exclusively through AutoZone’s VDP, or special order, program.