4:10 gearing

Discussion in 'GM Powertrain' started by 763chev, Sep 3, 2010.

  1. 763chev

    763chev New Member

    I own a 05 silverado with the 4:10s and was just wondering the pros and cons of them. If anyone can help me out that would be great! Thanks
  2. KWG08VMI

    KWG08VMI Rockstar 100 Posts

    If you do a lot of towing or you are planning on putting 35's under your truck they are great. They're also nice if you put your foot in it from a stand still. But they kill your MPGs. If you are planning on keeping stock or close to stock tires on the truck and only tow occasionally then I might suggest looking into a set of 3:73's. Or even 3:42's if you're not too worried about either one of those. Going to a taller gear will cost you, but they will pay for themselves at the pump.
  3. silveradotrailblazer

    silveradotrailblazer Epic Member 5+ Years ROTM Winner 5000 Posts

    What size tire are you running? I have 4.10's with 35's and its a good comprimise between off-road and highway driving. I do wish I had installed 4.56's with the 35's.
  4. retired2001

    retired2001 Epic Member 5+ Years 5000 Posts

    I had 3:73s on my 2004 Z/71 C/C and @ 65 mph it was running 2000 rpms. On my new one, 2010 Colorado Z/71 C/C has 4:10s (both have 5.3L V8s) I am running 2000 rpms @ 60 mph. Same size tires on both. If I had 3:73s now I'd probably be getting another 1 mpg or so.
  5. Brennan_Russell

    Brennan_Russell New Member

    i have 4.10s in my 2002 1/2 ton with a 4.8 and auto. i was wondering what kind of gas milage should i be getting, it has 265/75/16 on it. it gets around 15 mpg

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