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need help finding out gears.

Discussion in 'The Garage' started by Chrisblazzer89, Feb 12, 2007.

  1. Chrisblazzer89

    Chrisblazzer89 1/2 ton status

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    Ok i just pulld off the covers off my old 10bs and i wanna know wat gears i had here is wat i got out of them GM 1235 15 41 1287

    OR GM 235 5 41 287
     
  2. resurrected_jimmy

    resurrected_jimmy 1/2 ton status

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    divide 41/15


    wow....... that doesn't seem right, that would put you at a 2.8xxx ratio ???
     
  3. Chrisblazzer89

    Chrisblazzer89 1/2 ton status

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    that would mean 2.73333333
     
  4. resurrected_jimmy

    resurrected_jimmy 1/2 ton status

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    any chance that "15" was an 11
     
  5. Chrisblazzer89

    Chrisblazzer89 1/2 ton status

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    Let me go check
     
  6. Chrisblazzer89

    Chrisblazzer89 1/2 ton status

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    ok i missed some #s hre are exacltly wat i got off of the ring 1 GM 1235124 15 41 1287
     
  7. resurrected_jimmy

    resurrected_jimmy 1/2 ton status

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    41 should be the number of teeth on the ring gear and 15 should be the number of teeth on the pinion..... I'm not believing it somehow. If you really want to know,mark your start point and count ring gear teeth and pinion teeth and divide
     
  8. diesel4me

    diesel4me 1 ton status Premium Member

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    quite possible!..

    Many 80's 10 bolts had 2.73 gears...3.08's were the most common,I've also seen 2.56 and 2.29 ratio 10 bolts!...all in the name of lower emissions and more mpgs..

    I think you could also get 3.42's,3.73's,4.11's,and 4.56's factory option,in 10 bolts..:crazy:
     
  9. muddybuddy

    muddybuddy 3/4 ton status

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    yep ive heard of 2.73's before
     
  10. 83ZZ502_Jimmy

    83ZZ502_Jimmy 1/2 ton status

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    That's right.

    I have an 88 with 2.73's and another set of 10 bolts with 2.73.

    Not terribly uncommon....

    John
     
  11. blazinzuk

    blazinzuk Buzzbox voodoo Premium Member GMOTM Winner

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    Yep I have seen 2.73s in blazer 10bs. Holy crap that sucks. Nice thing is 3.73s should cost you about 20 bucks on ebay :D Hell if you want em give me till this summer and I will give you some 3.73s
     
  12. Chrisblazzer89

    Chrisblazzer89 1/2 ton status

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    No i was just wondering wat i had I know have 3/4 ton gear with 4.10s 14Bff rear and 10b 8 lug
     
  13. 87BrnRsd

    87BrnRsd 1/2 ton status

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    Good. It would definitely be a bad idea to run 2.73's with 38's.
    -Harrison
     
  14. Chrisblazzer89

    Chrisblazzer89 1/2 ton status

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    :haha: lol yeah seriously!!!:haha:
     
  15. resurrected_jimmy

    resurrected_jimmy 1/2 ton status

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    I never knew they used that high of a ratio with a 700R4, no wonder the trans burns up as soon as you add slightly bigger tires
     
  16. Chrisblazzer89

    Chrisblazzer89 1/2 ton status

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    Yep guess so happy i now have 4.10s and will soon have 38s.
     
  17. gmc4cw

    gmc4cw 1/2 ton status GMOTM Winner

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    my 83 had 2.73 and a 700r4. it was great when I put 35's on it.
     

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