Pinion Teeth: 7. Ring Gear Teeth: 43. Fits Case Tractor(s): V, 430, 470, 480, 530, 570, 580, 580B. Fits Case Construction & Industrial(s) : 430, 480, 530, 580, 580B. Fits Case OEM Numbers: A37195, A50997, A39267, G10319.