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Gearing vs Tire Size

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by beefcake83, May 4, 2001.

  1. beefcake83

    beefcake83 1/2 ton status

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    I know there's a table out there somewhere that shows this info, and I'll probably hear it for asking, but here goes anyway.... If I truely have 3.73 rear gears in my diff, and have 33's mounted on my rig, is that an okay combination? My old rig (70 Bronco... I know I know) had 4.56 matched with 35's, and seemed to do real well (2,500rpm at freeway speed). Appreciate any inputs. Thanks, Gary

    Gary Graham
    '83 GMC Jimmy 350 'Beefcake'
    Eielson AFB, Alaska
    Metallica & Mountain Dew
    http://community.webshots.com/user/beefcake83
     
  2. Derf00

    Derf00 1/2 ton status

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    Gary,

    I have 33's and 3.73's and the preformance is quite acceptable. The difference between 31's to 33's was not that great for me; however, I must add that my 31's weren't a full 31" and my 33's are not quite 33. The difference may be more significant based upon the true size of your 33's.

    Derf00
    http://www.derf00.coloradok5.com
    "Four wheel drive allows you to get stuck in a more inaccessible place."
     
  3. ChevyCaGal

    ChevyCaGal 3/4 ton status

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  4. BurbinOR

    BurbinOR 3/4 ton status

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  5. ftn96

    ftn96 1/2 ton status

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    Yes that is a good combo. If you have a 700 tranny you will want to stay out of overdrive until you get on the highway.

    Will work for beer, parts and tools.
    90-350TBI-TCI700-241-33"-10/12 bolt w/4.10's,
    <A target="_blank" HREF=http://www.nashvillek5.freeservers.com>http://www.nashvillek5.freeservers.com</A>
     
  6. loudandproud

    loudandproud 1/2 ton status

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    What RPM's do you want to have at certain speeds??

    [​IMG]
    <A target="_blank" HREF=http://loudandproud.coloradok5.com>http://loudandproud.coloradok5.com</A>
     

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