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Rebuilding your NV4500 or your Non-HO NV5600 and need a new input shaft? South Bend has the answer. This is a direct replacement 1-1/4" input shaft for the manual transmission found in 1994-2004 Ram 5.9L Cummins trucks. Please note most NV5600 transmissions featured an 1-3/8" input so be sure to verify your NV5600 is the non high output version.