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My first attempt at a video while driving. Just rebuilt the 455 stage 1 and M22 4-speed in this 1971 Buick GS convertible and the gears whining in the M22 "rockcrusher" really took me back to the '70s and '80s when these transmissions were the "holy grail" of GM gearboxes. I will do a feature on this rare and unusual Buick soon...