Inland Empire Driveline Transmission Yoke  SY-C6-1350Q is a direct OE replacement for the 31 spline Tremec TKO & T56 Magnum Transmissions.  This slip yoke uses bolt-on caps which is perfect for use in the C2 & C3 Corvettes or any application that uses an IRS.  *note that some tunnel modifications may be necessary for fitment of a 1350 u-joint in a C2 & C3 Corvette* They are made from quality forged steel and stronger than OE units.   31 spline forged steel Spicer 1350 Length:  6.500 in. Universal joint not included