1. Welcome To GMTruckClub.com!

    The #1 Chevy Truck Forum Online
    Online since 2004, we are the #1 Chevy Truck & SUV forum and user community. If you have any questions about your Chevy or GMC Truck, SUV or Crossover, or just want to connect with other GM owners and enthusiasts around the world, you've found the best place on the internet to do that.

    Join Today ~ It's Free
    Registering is Free and Easy! Hope to see you on the forums soon!

08 Silverado 2500 rear axle gear ratio

Discussion in 'Performance & Fuel' started by Trident, Feb 26, 2008.

  1. Trident

    Trident New Member

    I just lifted my 08 silverado 2500hd with a 6" kit with 35" tires. Stock rear axle gear ratio is 3.73 (I think!). Can someone recommend a good new ratio to accommodate the bigger tires? According to Superlift's website http://www.superlift.com/library/gears.asp, a 4.56 or 4.88 gear is "optimum". Any feedback on this? Also, would I have to regear the front gear as well? Finally, which mfr's would you recommend looking at? Thanks!
  2. dwill3015

    dwill3015 Epic Member 5+ Years ROTM Winner 1000 Posts

    I would say the 4.56's for sure as i have researched this for my 87 blazer w/35's for when have the money to upgrade my gearing and go with a posi unit. You must change the front to match the rear because it will bind up if not.

Share This Page