727 no 3rd wont shift

i do have a kick down linkage hooked up to it,i went through a whole bunch of crap to get it to,but thats a whole other story.im gonna do a little reserch of what a reverse manual valve body is,does that mean that it will never shift on its own?

I have that rod by the way maybee it didnt show in the pick

I wish that there was a way i could see a schematic of how it is supposed to be. Or is it somthing that old rodders did on there own. Like a low budget mod.