Pontiac Trans Am 455 Optional Packages - Got Torque?
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A 3.23 axle ratio was included with the 455 package from either year. It was a considerable jump from the 2.41-2.56 gearing found in a typical Trans Am with a 400ci engine and automatic transmission. When combined with the Super T10, the 3.23 gearset accented the 455's low torque peak to maximize acceleration yet maintain moderate engine speeds while cruising on the highway. View Related Article
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