This fuel rack jack can be utilized on GE Engines equipped with a layshaft. It can be mounted on a governor gear box with a ratchet and 3/4" socket as well as adjusted to provide the .343 full load fuel position necessary for fuel pump adjustment. It incorporates an emergency trip feature to quickly release the governor tail rod to the shut down position. This tool is used with the T12962 governor gap gage and the various fuel rack setting gages we supply.