HRK2 | Highway Ready Wheel Keeper Kit Uses (1) D-Washer 5/8″ID Or (1) D-Washer 1″ ID, Includes (1) D Tang Washer, (1)Cotter Pin, 2.2K,3.5K,4.4K,5.2K,6K,7K,7.2K,8K, Axle, 1″D Style Tang Washer