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  1. #1

    Cool 2002 Silverado Re-Gear?

    I have a 2002 Silverado LS extended cab 5.3 Automatic and 3.73 gears with the 8.5 rear end. This is not a big deal because I still have plenty of get up and go but I did notice a drop when I changed from the stock 30.1 diameter tires to the tires I have now and they are 31.2. I would simply like to regain the take off power I had or even make it better by re-gearing. Any suggestions on the new gear? I'm sure someone on here has done this already. Any help is appreciated.

    2002 Chevrolet Silverado Extended Cab SportSide: See Mods in My Garage

  2. #2
    Jr. Mechanic
    Join Date
    Nov 2011
    Central Illinois


    4:10. If you go much more than that your fuel mileage will suffer.
    2012 Silverado 1500 LT 4X4
    2003 Suburban LT 2500 6.0L
    2004 2500HD Crew Cab LT 4x4 6.0L - SOLD

  3. #3


    x2 on the 4.10s

    97 Chevrolet Suburban K1500 5.7L
    78 GMC High Sierra K1500
    Fat, drunk, and stupid is no way to go thru life.

  4. #4


    i willthird the 4.10s. any lower and you will be cranking the rpms at highway speeds and your mileage will go into the toilette. going to 4.10s would give you a boost of the line, but keep the rpms resonable.

    a axle swap would probably be your best bet. find a 6 lug with 4.10s in it and be done with it, if those exist, not to sure about that.

    my personal choice would be a 6.0 swap, but thats me.


    2011 GMC Sierra SLE 5.3 Z71 4X4 Stealth Gray Metallic / 2004 Chevy Impala LS 3.8 Cappuccino

    Tow mirrors - Diablew Tuned - Flowmaster Regular 40 - Ready Lift 2.5' lift - BFG LT A/T K/Os - Carr Light Wing - TruckLite LED lights - Optima Red Top - 50% Front Window Tint - Line-X bedliner - Airaid MIT - Tekonsha P2 - ARS Billet Grill - Fia custom fit seat covers

  5. #5


    4.10!! dont fear the gear..youll be happy..grinning ear to ear

    ---------- Post added at 05:18 PM ---------- Previous post was at 05:17 PM ----------

    do some research on doing it..its tricky but if you get a dial indicator and dial caliper you could do it yourself and save the cash

  6. #6


    What about 3.96? (if such a thing even exists)

    If at first you don't succeed, get a bigger cheater bar.

    1999 GMC Sierra SLT Z71 | 5.3 "Vortec" | Spectre "Cold Air Intake" | TransDapt TBS | Hypertech 30005 Tune | 2005 Chevy Tail Lights | Denali headlights | Grill Mounted Fog Lights | AWS Bug Shield | 265/70/16 Futura Scramblers | Boss HD Speakers | 2005 Overhead Console | Flowmaster Super 40 mufflers 2N1O | Mostly stock-ish
    Bigger Amp Alternator | Electric Fans | Transmission Fluid cooler | Paint (Halfway there)| Interior Restoration/Upgrade with newer model parts | Window Visors (In channel) | Tint | Low-Profile Tool Box | LEDs throughout stock cab locations (68% Done) | And whatever is spurr of the moment
    CVN-69 "IKE-ATRAZ" AIR/V-2 Gear Dawgs

  7. #7


    Another vote for 4.10's...

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