As I half figured, I'm going to be doing an accessory belt change before sending the car off on a 1000 mile trip. I checked what I had on hand and thought I hit it lucky, as I have a Gatorback 4060835 belt. But from what I'm inferring, that belt was used on the 2000+ Zetecs, while the earlier motors used a 4060735 belt. I'm assumming that there is a length difference, but does anyone know for sure? What changed on the motor to require the length difference?