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Ring and Pinion

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by dman69, Apr 12, 2002.

  1. dman69

    dman69 Registered Member

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    i am going to change my 3.08 gear ratio to 4.11 or 4.10 to run my small 35's, i was doing this so that i could put bigger tires on it someday. is there anything i should know before i do this?
     
  2. Blue Meanie

    Blue Meanie Registered Member

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    what size so you plan on getting in the future?
     
  3. Blue Meanie

    Blue Meanie Registered Member

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    what size so you plan on getting in the future? and what kind of power are you making? i only have a 305 and i am running 39.5's with 5.13's to make up for the underpowered almost dead engine. also, how do you use your vehicle?
     
  4. HarryH3

    HarryH3 1 ton status Author

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    4.10's are OK for 35's but if you plan to go to a bigger tire in the future, save yourself about a thousand bucks and put in the right gears for the next tires now. /forums/images/icons/cool.gif
     
  5. RockBurb

    RockBurb 1/2 ton status

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    I have 35's on my suburban witha 700r4, and Im running 4.56, and its great. I would personally go 4.56 so then you have some flex room in the future.
     
  6. reddog64

    reddog64 1/2 ton status

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    do 4.56's you wont regret it.. it's like adding an extra 50 oponies to your motor... so to speak...
     
  7. Blue85

    Blue85 Troll Premium Member

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    With O/D, I would go to 4.56. with a 3-speed, stick to 4.11. I have O/D with 35's and 4.10's. I turn 2000rpm on the freeway, so it's definately not too low of a gear.
     
  8. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    If you have a O/D trans then go with 4.56 gears. I currently have 35's and 4.10's and it is not enough gear for the trans. The trans wants to "search" between 3rd and O/D. This will burn up a 700R4 real fast if not careful. I have 4.56's ready to install now. Even if you have a TH350 or TH400 I would still go with the 4.56's if you plan on bigger tires in the future. I ran TH350 with 35's and 4.56's on my last rig and it worked out well.
     
  9. JIM88K5

    JIM88K5 1/2 ton status

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    If you've got a 700 4.56's are great. A 3spd then 4.10's would be a better choice...
    Jim
     
  10. MudbogAD

    MudbogAD 1/2 ton status

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    4.56's all the way
     
  11. Rebel88

    Rebel88 1/2 ton status

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    forget that if youre going up to a 39 or similar in the future for the 700 to be in optimum rpm range you need 4.88s...i know cuz thats what i just put in mine for 39 boggers

    Later
     

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