suzuki sj Available Here. Drive belts ensure that that adequate power is supplied to your alternator, air conditioning pump, power steering and other components under your bonnet. Drive belts tend to have a fairly long lifespan so, if you're lucky you may never have to change one. However, things can and do go wrong, so you should look and listen for common symptoms of a fault. If you hear squealing, that’s a sign you should investigate it straightaway. Other more obvious indications include cracking, rotting, uneven wear or notches in the physical surface. Don’t delay, and select your replacement drive belts from MicksGarage.com.