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axle ratio stamping decode, KAH

Discussion in 'The Garage' started by R72K5, Mar 9, 2006.

  1. R72K5

    R72K5 Banned

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    where how do you decode axle ratio stamping code ?

    KAH 1977 K-10 pickup 12 bolt


    google has been no help so far

    thanks for anything
     
  2. 87BrnRsd

    87BrnRsd 1/2 ton status

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    I dont know what KAH means, but why dont you just count the teeth on the ring gear and on the pinion gear and divide them together?
    -Harrison
     
  3. atho

    atho 1/2 ton status

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    I've always wondered if you have ever tried to do this without removing the carrier. I don't know how you can?

    But the ratio should be stamped into the ring gear.
     
  4. 85k30

    85k30 Registered Member

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    pull the cover
     
  5. JeffHK5

    JeffHK5 1/2 ton status

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    Put it on a floor jack, block one tire on diffs with L/S or open carrier and spin tire one complete turn. Pinion will turn 3 3/4 turns for 3:73 or a little over
    4 1/2 for a 4:56.... etc....

    Rig must be in neutral :eek1: !

    Jeff
     
  6. R72K5

    R72K5 Banned

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    yeh theres always that way of checking it, but whe i do it it never seems ot come up right and them im still unsure and i am not ready to pull covers and change fluid yet but its on my list of to do things for this rig of course, as it should be for all rig owners

    i guess i will have ot call the chevy dealer counter in the morning or go out there and have them look it up

    seems that the internet has zero info on axle codes

    i was hoping that maybe by now there would be something, but i guess there isnt, nor ever will be

    i really hope the axles are 3.73 so i can dump the 12 bolt and put a common 14FF 3.73 under it

    it seems like it drives like 3.73 but im just not for sure, it just doesnt seem sluggish like 33" and 2.73 or 3.07 would be, unless its just the 400sbc working good,

    dunno



    *crosses fingers*

    thanks :D
     
    Last edited: Mar 9, 2006
  7. R72K5

    R72K5 Banned

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    well crap its 3.07 ratio

    damn

    welp im just gonna keep the 33" tires and not put in an FF 14 bolt axle

    gonna remain a stock original K-10

    saves alot of work and $ i guess,

    just gonna be a daily driver, as it is right now and always has been

    it must not have really ever been wheeled much, as i checked the frame rail and its not cracked or anything, and theres no where to wheel here anyways, at all

    now to trim the fenders so the 33" wont rub anymore



    hmm

    thanks
     
    Last edited: Mar 11, 2006

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