Application: Refer to parts book, 10050 (Mechanical Shuttle), 11050 (Mechanical Shuttle), 3321, 3341, 4321, 4341, 6321, 6341, 6421, 6441, 7321, 7341, 7421, 7441, 8020, 8040, 8421, 8441, 9020, 9040, 9050 (Mechanical Shuttle), Major 60, Major 80, Proxima 70, Proxima 80, Proxima 85, Proxima 90