GM Truck Club
THE PREMIER CHEVY TRUCK & SUV FORUM
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 3 of 3
  1. #1

    Default 2012 burb and want to change gear ratio to 3.73

    My First post!
    Just picked up a 2012 burb and about a week later found out i bought on with a 3.08 rear end, crap!

    Bought the truck for pulling my toys around, found out the 3.08 is rated at only 5000lbs....the 3.43 is rated at 8100lbs.

    So at the very least i would like to repalce to a 3.43, but would prefer a 3.73.

    Guestion is, how hard and expensive is it on the newer trucks. Any input would be appreciated.

  2. #2
    Legend


    Enkeiavalanche's Avatar
    Join Date
    Apr 2010
    Location
    Piermont,NY, back in Northern NJ now, But may be in IL soon....
    Posts
    5,357

    Default

    Since it is a 2012 I would have the dealer do the work..And put the Locker in....
    08 Z71 Avalanche Mods to date: K&N CAI,Hellwig Swaybars and End Links, Corsa Sport Exhaust, Superchips Programer,IPCW LOF & 3rd brake light and tails, AMI Gas door,Show Hooks and Door locks, Enkei Wheels, with Pirelli tires, StreetScene Bowties, Grant Steering wheel,Muth signal mirrors,SSBC Big Brake kit,Huskyliner Mug gards,Floor mats and Hood shield, McGard Lug nuts and locks, Bedrug, Cervini's Ram Air hood,35watt HID Fog lights, Sylvania bulbs all around ZXE's Highs and Lows, WhiteNight Back up lights,Sirius and HD Radio, SnugTop sitting on deck now Got a Softopper on now,Tempress Boat Hatches.... New Bilstein shocks are on... New Mods coming soon..... X

  3. #3
    Sr. Engineer ahm1127's Avatar
    Join Date
    Jan 2009
    Location
    Pennsylvania, United States
    Posts
    320

    Default

    Quote Originally Posted by Enkeiavalanche View Post
    Since it is a 2012 I would have the dealer do the work..And put the Locker in....
    I agree, I would do 3.73 but your probably going to want to get bigger tires for the extra gearing. Not a cheap job
    Everyday I wake up is a great day! ;-)
    05' Chevy Suburban, 11' Ford Fiesta

Similar Threads

  1. gear ratio?
    By lenb in forum General Chevy & GM Tech Questions
    Replies: 5
    Last: 07-27-2011, 04:29 PM
  2. Trying to get gear ratio
    By renchr01 in forum Chevy Silverado Forum (GMC Sierra)
    Replies: 11
    Last: 01-24-2011, 02:09 PM
  3. what gear ratio?
    By dustin_742 in forum General Chevy & GM Tech Questions
    Replies: 16
    Last: 12-09-2009, 06:24 AM
  4. What gear ratio should I have?
    By drumrob in forum Lifted & Offroad Suspension
    Replies: 4
    Last: 03-17-2009, 07:00 PM
  5. Gear ratio
    By stringbender in forum General Chevy & GM Tech Questions
    Replies: 4
    Last: 02-08-2009, 05:49 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •