This tool allows easy removal and replacement of FORD shift linkage pins. TK56RTD TK-56RTD TK-56-RTDWorks great for A4LD, 4R44, 4R55, 5R55, AODE, AOD, 4R70W & 4R100.Also includes (1) 3MM Replacement Pin and (1) 1/8" Replacement Pin.