rosewoodgang

I have purchased a 1992 f150 4x4 with 4.9l engine and 5 peed manual transmission. My question deals with the cruise module was missing from under the dash on drivers side. What Ford number module should I look for? My 1989 Bronco 4x4 with 5.8l engine and C-6 automatic cruise module was tried for a replacement, but did not work. I have checked steering wheel switch threw clock switch into wire harness for connective circuit a okay. I have also checked the vacuum system on cruise actuator with check valves all seem fine.I also verified fuses in boxes and emergency flash circuit a okay.
Thanks Harvey