Case Ih single stage clutch disc, (10 spline, 8-1/2") Case Ih single stage clutch disc, (10 spline, 8-1/2") $56.34 Enter Quantity SKU: W-4154-FD320021 Replaces: sba320400210, SBA320400211, SBA320400212Fits: Tractors: Case Ih: D25, D29, DX25, DX29Note #1: (8-1/2" dia., 10-spline, 15/16" center hub)