The BANNED Rear Gear Ratio GM Quietly Used to Fake Horsepower Numbers
For years, muscle car fans chased horsepower numbers printed in brochures — but what if some of that “power” wasn’t coming from the engine at all? Behind the scenes, GM quietly used a rear gear ratio trick that made cars feel brutally fast… while the dyno told a different story. The result? Bigger performance impressions without touching the motor. Here’s the banned gear ratio strategy that blurred the line between engineering — and illusion.
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