I was reading Twisted_Metal's old thread that got bumped today on TH350 to 200-4R conversion. One thing I want to know is this: When the Q-jet bellcrank or bracket changed so that a TV cable couldn't just swap right into a Q-jet car? I know the '80s TH350-C, 200-4R, 200-C, and 700-R4 cars used the exact same bracket and bellcrank attachment point at least as far back as '83. I've owned a few. And I've converted a few. Remove TH350 kickdown cable, install 200-4R/700-R4/TH200 TV cable, done. What changed, and when did it change, such that the aftermarket bracket and possibly bellcrank mods are needed? This (supposed) '81 Vette Q-jet from the `bay looks like, it too, would take a TV cable attachment point. This (supposed) '69 Chevy Q-jet from the `bay looks like it has a different bellcrank, but I have no way of knowing the hole there is correct or incorrect for a TV cable. Who can provide a history lesson?