07 NBS rear end gear swap?

Discussion in 'GM Powertrain' started by bamf_shadow, Apr 12, 2010.

  1. bamf_shadow

    bamf_shadow New Member

    I have an 07 NBS 4.8L w/ 3.23 rear. I have put 285 tires on it, and I am wondering if I should look into a 3.73 rear to help get them rolling. Is it just a gear swap or do I need a complete rear end? I am thinking maybe a wrecked truck, anyone know what the RPO code is for that rear? Thanks!
  2. chschevy58

    chschevy58 Rockstar 100 Posts

    you shouldnt need to regear with only 285's. when you run a 35" tire then you should regear

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