RTS OE, Spicer, 3-3-2431X Transmission Yoke 1350 Cast, GM 32 spline 5.5 in Length, TH400, 4L80E, M-21, M-22, T-5 , Each - RTS-TY332431XPart Number: RTS TY332431X Genuine Spicer OEM yokes can be purchased directly from the RTS range of drivetrain components. These OEM styled cast iron transmission yokes have been used in the production of many vehicles and are produced with the same high standards as their originals for reliable service.