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Speedmaster
GM Turbo 400 TH400 Hardened Steel Intermediate Main Shaft (stage II)
MPN: PCE602.1004 UPC: 840136558637
These hardened input shafts have increased lubrication, flow, and strength, a resized diameter that provides optimum stress lubrication along the entire length of the shaft, and extended high-gear splines to the oil ring. Perfect for heavy duty racing applications.