SST-0156-BA - GM - 4L80E Transmission Holding Fixture / Tool with Base Made in the USA! Bench Mounts w/ included base. Full 360 degree swing. Dual tightening handles for a secure hold. All Steel Construction. Allows work comfort at any angle. Allows easy access to work on valve body. Includes a SST-2901 Adapter for mounting a 4L80E Transmission.