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4.10/4.11 gears

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Stephen, Jul 2, 2001.

  1. Stephen

    Stephen 1/2 ton status Moderator Vendor

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    This was brought up in another post and rather than continue it, I brought it here.
    You're welcome Steph......:-)

    when they build diff gears, you can end up with different numbers of teeth on the ring and pinion that still come out close to the "target" ratio. A lot of trucks will have 4.10's in one end and 4.11's in the other, or even 4.09's in one or the other. That's about as far as it goes though. You won't find them separated by much more than that.
    The old tale about having one set in the front different so that it "pulls" really isn't true, it just happens that way. And to be honest with you, you'll notice a difference in tire pressure between front and rear before you notice a difference of .02 in gear ratio.

    Making the world better, one truck at a time.
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    SW-ORD
     
  2. ChevyCaGal

    ChevyCaGal 3/4 ton status

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    Thank you Stephen, I appreciate it... I guess you learn something new everyday! Wes (thatk30guy) also helped me clear it by saying the difference can be up 2.99% and still be fine.... so that makes sense now. [​IMG]

    By the way I just ordered my brace from you yesterday... I'll try it out at Hollister! Woohoo! [​IMG]

    I removed my quote so gay, vegetarian, minority, eco-nazis who love Jesus, nuke spotted owls, vote Gore and smoke medical marijuana won't be offend.
     
  3. UseYourBlinker

    UseYourBlinker 1 ton status

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    Thanks for making that clear...




    <A target="_blank" HREF=http://community.webshots.com/user/vwryda>http://community.webshots.com/user/vwryda</A>
     
  4. ftn96

    ftn96 1/2 ton status

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    Yep, that is one of the top ten boogers of mis-conception. Very good point Steve. I've seen hints of this around but have always failed the energy test to respond.[​IMG]

    HELP! I'm under my truck and I can't reach my beer![​IMG]
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  5. 90K5

    90K5 1/2 ton status

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    So, do you think I should go with 4.10's or 4.11's? I'll probably be a lot faster with 4.11's right? [​IMG]

    90K5

    See my truck at <A target="_blank" HREF=http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502>http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502</A>
     
  6. FatBoyBlazer

    FatBoyBlazer 1/2 ton status

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    tank you veti much

    high
     
  7. gokartergo

    gokartergo 3/4 ton status Staff Member Moderator

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    You won't even notice the diffrence betweem 4.09,4.10,4.11. They are so close. 4.11's are more comin and can be found easier...........Dan
     
  8. HispanicPanic

    HispanicPanic 1/2 ton status

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    ok just an example lets say 3.73 gears, they could also be 3.72 is there a diff. no its the same thing cuz what happens is you have 41 teeth on the ring gear and you have 11 on the pinion so when you do the math its 41/11=3.72727272727272 which is how you get 3.72 gears however if you round to the nearest thousands its 3.73 so what im trying to say 3.73 gears if gotten tech. about it are 3.72 and 4.11 are something like 4.106 which are? thats right 4.11s
    its all the same 4.10,4.11 just depends on how you look at it hope i helped


    BEER-- one is none, two is half, and three is one.
     
  9. Burt4x4

    Burt4x4 3/4 ton status

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    I am running front D44 w/4.09 and rear D60 w/ 4.11.

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
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  10. 90K5

    90K5 1/2 ton status

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    guys I know.....hence the [​IMG]......thanks anyway though.

    90K5

    See my truck at <A target="_blank" HREF=http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502>http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502</A>
     
  11. Emmettology 101

    Emmettology 101 3/4 ton status

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    Ya, alot of D44's came from the factory with 4.09's and the 12 bolts that were in the rear were 4.10's or 4.11's....

    You wont notice any ifference between the two/three...

    <font color=green>MIKE</font color=green> - "Hukd on fawnics,werkd fer me!"
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