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6S1757 is still running the original all cast iron close ratio T-10. Assembly date is C162....March , 1966, 2nd shift.
hi brant . . . can you please de-code the assembly date stamp?thanks,alan
Any markings on the cast iron tail assembly?Steve
From my experience they pretty much phased out the aluminum T10s right around the time that they went to under ride traction bars. Ive seen aluminum in cars on the 1000s serial wise and Ive seen all cast iron as low as in the 1200s. Ive never seen any factory minutes or paperwork showing they mixed and matched alloy with cast iron in the production cars but Ive seen ads for the transmissions that way . the tailshafts were very fragile and they broke easily