Fits rear gang on Brent CPC and Earthquake™ rippers; late models with 4-bolt riveted flange; Great Plains Verti-Till models 4360A, 5300A, 6360A, 7225A, 7300A, and 9225A; Krause-Kuhn ripper models 1740-1767, 2400-2495, 4995, and 5812-5824. Also fits select models of Krause-Kuhn and International Harvester discs.