I had TH350 rebuild and they plugged the kickdown cable hole, the thing has nice firm shifts and will chirp 3rd. If I come almost to a stop it downshifts on its own, but if I am driving and hammer it I need to downshift by hand. (This don't bother me at all) What exactly does the cable do? Am I correct in to assume that nothing bad will happen because there is no kickdown cable. The guy knows his stuff about transmissions and builds them for a lot of race teams, but I have not asked him about this yet.. I did not even think twice about this when I saw it, but it was brought up in another forum about someone's tranny after a new converter feels like it slips into neutral and now feels spongey and someone told him it was because the kickdown cable was not controling the line pressure because he did not have it hooked up, sounded fishy because mine is nice and firm.