There are a variety of symptoms that can mean that it may be time for a Mazda axle assembly. The uneven wear of tire tread, despite careful care in keeping tires inflated to the recommended pressure, despite balancing and other efforts, is one of the things that should lead you to check into the possibility that you need a new Mazda axle assembly. Uneven tire tread wear, once other causes have been ruled out, can indicate a bent axle. This sometimes happens when striking a high curb or a deep pothole at a bad tire angle. There are noises that can indicate the need for a new Mazda axle assembly. It's difficult to make the call on the need for a new Mazda axle assembly on noise alone, however, because such noises could have other meanings. However, when they occur with other symptoms, these sorts of noises often do mean that problem will need to be resolved with a Mazda axle assembly. Among the noises to look for is a growling type noise, which often indicates the axle bearing may be going, a whine that can suggest the gears may be the source of the problem, and a howling type of noise could relate to a difficulty with the rotating parts. Once you've eliminated other potential sources of such noise, you may find that you need a Mazda axle assembly. This is especially true if there is significant vibration when making turns or vibration with a deep clunking noise when you are using the vehicle in reverse. When these symptoms occur together, it usually does indicate the need for a Mazda axle assembly.