I removed the deck and replaced blades and deck belt. I then replaced the drive belt to the trans as well. The tension spring, which attaches to the idler plate . . where does it attach at the back of the tractor? I forgot where and see no sign of it. I placed it too far forward, no power., moved it back to another hole, was better, moved it again and it feels pretty good. But I want to attach it to the right place sense the tension of the spring is so important to the drive of the tractor.