This may have been address elsewhere on this forum, but after a quick look around, I don't see anything that exactly addresses this, so here goes. I have 1971 GS 455 that I want to convert from a TH400 to an M-20. I am having issues locating the correct clutch pedal assembly and related rods/z-Bar. I have seen some opinions that 'think' that 1970-73 Olds Cutlass and GTO parts will work, but aren't sure. I am also pretty sure that Chevelle parts will not work. So my question is, can anyone give me a definitive answer to whether or not 1971 Olds/Pontiac clutch parts will work in my GS? If not, are you aware on any sources for these parts?