When is the last time you checked the drive belt in your trucks or machinery for signs of wear? And what should you look for?If your vehicle is less than 20 years old, it likely is equipped with an EPDM (ethylene propylene diene monomer) synthetic rubber belt. Mark Lein, project development engineer at Goodyear Engineered Products, says EPDM belts were installed by original equipment manufacturers in the late 1990s and introduced to the replacement market in 2002.Prior to that, most vehicles had neoprene belts. Neoprene had a life expectancy of approximately 50,000 to 60,000 miles. They also cracked and lost
