I was mowing last week and my 54" Husqvarna mower deck suddenly stopped moving. The engine is still running, the blades are spinning but not moving. If I stopped for a minute, he would love again for a while. I was hoping it was the drive belt and nothing worse. Ordered this belt, received it overnight. Ideal length. Relatively easy replacement - remove mower deck, disconnect connection from PTO, disconnect PTO harness, remove belts from driven pulleys, then front pulley, then rear pulley (note