2002 Silverado Re-Gear?

Discussion in 'Chevy Silverado Forum (GMC Sierra)' started by donyms, Jun 4, 2012.

  1. donyms

    donyms Epic Member 5+ Years ROTM Winner 1000 Posts

    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. :glasses:
  2. paracutin

    paracutin Rockstar 100 Posts

    4:10. If you go much more than that your fuel mileage will suffer.
  3. Boonduff

    Boonduff Rockstar 4 Years 100 Posts

    x2 on the 4.10s
  4. Sierraowner5.3

    Sierraowner5.3 Epic Member 5+ Years 1000 Posts

    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.:neutral:

    my personal choice would be a 6.0 swap, but thats me.:sign0020:

  5. coyoteriddah00

    coyoteriddah00 New Member

    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. rileyjr16

    rileyjr16 Epic Member 5+ Years 1000 Posts

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

    SurrealOne Former Member ROTM Winner 1000 Posts

    Another vote for 4.10's...

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