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  1. Introduce Yourself
    Finally got my first magnum, gotta figure out why my nag1 keeps throwing a P0730 code, then looking into ditching the 3.5 for a 5.7 or 6.1. Trans codes I'm getting from my scanner are P0730 (incorrect gear ratio), P0731 (gear ratio error in 1st), P1637 (TCM INTERNAL-EEPROM PERFORMANCE) Any help...
  2. Introduce Yourself
    What up all, new to forum but def not new to wrecking ish on purpose to get a better upgraded version of it. Car info in signature....soon to add to it...a new tranny cause I know it........blew my first TRANNY. lol. For real though any recommendation on performance...
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