This performance specs book provides supplemental service specifications to the regular service specs book. The performance specs book specifically covers those specifications that change most frequently: Automatic Transmissions (Group 17), Fuel Systems (Group 24), and Emission Control Systems & Tune-up specs (Group 29 & 50). Most of what you will find are shift speed specs based on speed, axle ratio, & tire size. Buy now to get the facts about your vehicle.
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