Improved for your Powerglide, TCI PRO-X input shafts offer better performance and reliability. Their hardened input shafts offer a resized diameter, extended high-gear splines to the oil ring, and increased lubrication flow for more strength and optimum stress distribution to handle big horsepower. TCI PRO-X shafts utilize their proprietary material that is CNC-machined, heat-treated, and cryogenically stress-relieved to handle engines producing 1,200+ hp, while their ringless PRO-X shafts will take on 1,500+ hp! Plus, the turbo-spline shaft allows for the installation of a turbo 350/400 converter in your Powerglide. TCI PRO-X input shafts are better built to best your horsepower record.

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