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Thread: gear ratios

  1. #1

    Default gear ratios

    how do you change gear ratios on a silverado?

  2. #2


    You replace the ring and pinion gears in the differential (front, too, if you have 4wd).
    '98 K1500 Suburban LS 5.7 L 4L60E NV246 ARB
    '92 Ford Explorer XLT 4x4 4.0 L A4LD BW13-54 Trac-loc rear
    "My toys were the greasy cogs and springs and pistons that lay around all over the place, and these, I can promise you, were far more fun to play with than most of the plastic rubbish children are given nowadays." Danny in Roald Dahl's Danny The Champion of the World

  3. #3


    but how do you buy something?how much?

  4. #4
    finalday7's Avatar
    Join Date
    Oct 2007
    Sayward, B.C Canada


    lots of places sell them. I'll probly be using accuautoparts but summit, jegs and tons of others sell them. Find out what type of rear end you have and then buy the gears accordingly. The gears range from about 130-350 depending on brand and quality. You'll also have to purchase an install kit and they can run from about 45-100. Install is also expensive. Expect about 250-400.

    2007 GMC Sierra CrewCab 4.8L
    Tinted Windows, 20" Chrome MB Predators on 275/55/20 Copper AT's, GM Bed Rug, Speed Scene Chrome Grille, Putco Chrome Handles, Hypertech Max Energy Programmer, Magnaflow Muffler and many more mods to come.
    Former GM Vehicles:
    96 Chevy Camaro. My first car modded for a High School kid.

  5. #5


    Heres a place I've been using for a few years:
    I also use PORC:
    but they mostly carry low ratio gears for off road trucks.

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