Thread: gears?????
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Old 04-15-2009, 10:42 AM
  #2  
johnracer
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Join Date: Aug 2005
Location: Rifle Colorado
Posts: 585
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My 93 k3500 454 dually had 4.10's. There's a decal in the glovebox with a bunch of 3-letter codes on it. One of them will tell you. I'd be happy to check Alldata at work to decipher the code for you......
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