Jerry, I never had the misfortune to drive an 15 speed Eaton but we had one rig with a 16-speed Spicer and I had to read the instruction sheet every time I was assigned that truck. I remember reading that "the ratcheting sound will diminish as the driver gains skill." I was never able to make the ratcheting sound disappear. I hated it. Give me 2 sticks or a 10 speed and big power.
