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Need some real world numbers....

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 77K5Blazer, Jun 21, 2001.

  1. 77K5Blazer

    77K5Blazer 1/2 ton status

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    Ok...trying to decide here, and you guys are my very best resource! I cannot decide between 33's and 35's, basically the only things stopping me are gas mileage and wear and tear on my axles! Ok, anybody with 33's or 35's could you please tell me your basic setup, what you get for mileage around your hometown, and if you have run into any problems due to tire size! I am afraid that I will screw up my 12 bolt and d44! So, what is your guys honest opinions, and yes, mileage really DOES matter!

    <font color=red>1977 Blazer, GM350, SM465, NP205, Dana 44/ 12bolt, 31x10.50r15 BFGs</font color=red>
    "Awh....Prarie $hit!!" -Blazing Saddles
     
  2. 2Dogs

    2Dogs 1/2 ton status Premium Member

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    Don't see your gear ratio mentioned.....
    Don't go with 35's unless you have at least 3.73s and preferably 4.10s.
    33s will rub with no lift and 35s will rub with 4" lift.

    Dave

    Don't Be Sexist - Broads Hate That
     
  3. chevy4x4

    chevy4x4 1/2 ton status

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    he's got 3.73.....also has a crate 350

    <font color=purple>L8R...</font color=purple>

    <font color=orange>c</font color=orange><font color=purple>hev</font color=purple><font color=orange>y4x4
    </font color=orange>
     
  4. 2Dogs

    2Dogs 1/2 ton status Premium Member

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    Since this is a gas mileage post, I think 33s would be a 'best' fit.

    Dave

    Don't Be Sexist - Broads Hate That
     
  5. 77K5Blazer

    77K5Blazer 1/2 ton status

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    Thanks guys...appreciate it, chevy4x4 already talked me into 33's, wasn't too hard!


    <font color=red>1977 Blazer, GM350, SM465, NP205, Dana 44/ 12bolt, 31x10.50r15 BFGs</font color=red>
    "Awh....Prarie $hit!!" -Blazing Saddles
     
  6. ChevyCaGal

    ChevyCaGal 3/4 ton status

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    Make sure the 33's you buy are truely 33's.... I have seen some that aren't the stated 33's height but 32's (like mine are)and even 31's! They were even mounted either, so I don't know what is up with that... but I have heard of this here and there so just measure and be aware.... [​IMG]

    "Suck Fumes Ford Boy"
    "I love my country, I fear my government"
    <A target="_blank" HREF=http://www.chevycagal.homestead.com/steph.html>http://www.chevycagal.homestead.com/steph.html</A>
     
  7. pcorssmit

    pcorssmit 1/2 ton status

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    Most "flotaion" tires measure around an inch less than the sidewall says.

    Pete

    '83 K5, 350 TBI (ex 6.2), 700R4, NP208, Dana 60/14 bolt, 4.56s, Detroits, 3" lift, 15-39.5x15 TSLs
    '97 Dodge 2500 4x4 CC LB Sport, Cummins 5 spd
     
  8. Leadfoot

    Leadfoot 1/2 ton status Premium Member

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    Sorry for my ignorance, but what do you mean by "floatation" tires?

    If you didn't built it yourself, how can you call it yours.......?
     
  9. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Flotation is any tire designated with a height and width in inches like 33x12.5...as opposed to a 'P-Metric' tire using Millimeters and aspect ratio like a P (or LT) 235-75-R15.

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
     
  10. 1990SilveradoK5

    1990SilveradoK5 1/2 ton status

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    I just put a set of 33 BFG All Terrains on my 90 on stock rallys and they measure just over 32".

    Ride nice and handle well, not much off road trials yet.

    Gone Large and Loving It.
    Keith
     
  11. blazerbum

    blazerbum Registered Member

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    im running 33x12.50 without a lift on my 73k5 all i had to do was trim the fenders gas milage really havnt noticed any change 8mpg the front 44 and the rear 12 bolt seem to be handling it quite well even when i launch it stopping is a little different need a little more space but the setup seams to work good. im still running 307s and there doing fine also goodluck

    <P ID="edit"><FONT SIZE=-1>Edited by blazerbum on 06/22/01 11:18 AM (server time).</FONT></P>
     

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