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2010 Silverado Gearing???

Discussion in 'Chevy Silverado Forum (GMC Sierra)' started by Speedster281, Jan 17, 2011.

  1. Speedster281

    Speedster281 New Member

    I'm basically runnin a 2010 Silverado crew cab 5.3l with 7.5" lift, 35" tires w/ 20" XD wheels, no power mods yet except exhaust.. Yeah it added alot to turn over now but only has 3.08 gears for now and getting around 10.5 mpg on hwy.. Whats gonna be better 3.73, 3.9 or 4.10?? Its gonna be pulling the boat (about 12000lbs with trailor) some on weekends but mainly just driving around with it..

    [​IMG]
    Last edited: Jan 17, 2011
  2. stephan

    stephan New Member 1000 Posts

    Are you going to be pulling a lot of hills to get it to the ocean or lake? What is going to be your percentage of towing miles compared to not towing?
    Last edited: Jan 17, 2011
  3. Speedster281

    Speedster281 New Member

    Put in more info...
  4. Blackout07

    Blackout07 New Member

    4 spd - 4.56

    6 spd - 4.10

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