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10 bolts and 39.5" tires???

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by K5Junkie, Aug 21, 2001.

  1. K5Junkie

    K5Junkie 1/2 ton status

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    10 bolts and 39.5\" tires???

    How many people are running these size tires or similar with 10 bolts. I am considering running these tires with my 30 spline 10 bolts. Was wondering how long they might last wheeling about once or twice a month and driven everyday? I do have a detroit locker in the rear and Aurburn in the front if that matters.

    I am pretty sure the concensus will be wait to get 3/4 ton or 1 ton axles before i go this big, but i am wondering if there is anyone out there running this combo or similar and making it work?

    Thanks in advance,
    Joe



    Check out my pictures:
    http://www.geocities.com/jmargtx/index.html
     
  2. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

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    Re: 10 bolts and 39.5\" tires???

    Your kidding right?

    Steve

    Bandwidth FREE ZONE

    Mall-Running poseur 4x4 with curb-feelers
     
  3. Derf00

    Derf00 1/2 ton status

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    Re: 10 bolts and 39.5\" tires???

    Believe it or not, I know a local kid that is running that combonation, but on the street only. This week I have also seen a brand new Dodge P/U running 44" Boggers, it has a huge lift and stock axles. Both are accidents waiting to happen.

    Derf00

    "A WISE MONKEY NEVER MONKEYS WITH ANOTHER MONKEY'S MONKEY."
     
  4. BOWTIE

    BOWTIE 1/2 ton status

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    Re: 10 bolts and 39.5\" tires???

    Sorry Joe, but this combo is not gonna work. Believe me I ran that same setup for quite some time and almost every trip I had to replace an axle or an axle U-joint. Then there was a time when I couldn't just replace what I broke. So if you carry enough spare parts with you and you want alot of practice on trail repairs then go for it, but I wouldn't do it.

    Ric

    <font color=red>"Wheel hard or go home."</font color=red>
    click to see <a target="_blank" href=http://www.off-road.ws/images/users/BOWTIE/bowtie4.jpg> BOWTIE</a>
     
  5. 90blzr

    90blzr 1/2 ton status

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    Re: 10 bolts and 39.5\" tires???

    You been around Chris' Blazer to much havent you[​IMG]!!
     
  6. 84_Chevy_K10

    84_Chevy_K10 Banned

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    Re: 10 bolts and 39.5\" tires???

    My friend ran 44x18x15 tires on his stock 28 spline 10 bolt front/12 bolt rear, 6 lug. Now he has a 10 bolt/14 FF and the same tires. He ran it through the mud bog competition and was one of the only few to make it through. He has a 350, SM 465, and NP 205.

    Another friend of mine has a '76 K20 with 39.5" Boggers. He has his stock D44/14 bolt full floater combo with a built 454, SM 465, and NP 205. He was the first person to make it through the mud (and the first to try) in the competition. He broke his front axle once last winter, but other than that, he has never broken a front axle.

    My other friend has an '81 K20 Suburban with 44x18x15 Gumbo monster mudders. His driveline is bone stock as well, 350, SM 465, NP 205, 10 bolt, 14 FF, no problems, never a broken anything.

    Try telling me now that 10 bolt or D44 fronts are weak. Maybe a 10 bolt rear's axle bearings couldn't take it, but I promise you that front axle will as long as you're not a rock crawler.

    Tim
    '84 Chevy K10, lifted, loud, fast, and 3/4 ton axles
     
  7. RedDwarf

    RedDwarf 1/2 ton status

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    Re: 10 bolts and 39.5\" tires???

    Why not try the Warn hub fuses?

    If it's too much tire, you'll strip out a bunch of hub fuses, but they may keep the front alive.

    You can also run cheap parts store joints on the front driveshaft so that they might break before the front axles, letting you know to back off.

    Also, air down and just stay off that throttle as much as possible.

    Lift It, Lock It, LIVE IT!!!
     
  8. BOWTIE

    BOWTIE 1/2 ton status

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    Re: 10 bolts and 39.5\" tires???

    The fuses would of been a good idea, but on my last wheeling trip here in some local mud pits I busted an axle U-joint, fixed it, then got on it again and then broke my tru trac. After that I decided it was time for an upgrade, so after some searching I found a D60 and slapped that under my K5. Also got a 14ff for it, but it's not under there yet.

    <font color=red>"Wheel hard or go home."</font color=red>
    click to see <a target="_blank" href=http://www.off-road.ws/images/users/BOWTIE/bowtie5.jpg> BOWTIE</a>
     
  9. NOT4SHW

    NOT4SHW Guest

    Re: 10 bolts and 39.5\" tires???

    How could you tell he was jealous? Just because the only time I've been stuck is pulling out a Suzuki &amp; a Ford! Anyway I did explode the rear pumpkin but it was because of the ring gear spacer between the carrier and ring gear the previous owner had installed.

    '79 K5,13 1/2" lift, 39.5 TSL's,15x12 Eagles,350,t-350,warn 8274,39.5 Boggers for wheeling!
     
  10. NOT4SHW

    NOT4SHW Guest

    Re: 10 bolts and 39.5\" tires???

    Dude don't be scared! I know just where you can get (4) 39.5 TSL's on 15x12's for a really good price! Then I can have boggers all the way around! WHEEL IT HARD!! JUST WAIT TILL THE NEW 10:1 CORVETTE 350 WITH NEW WORLD PRODUCTS S/R TORQUER HEADS MAKES IT'S WAY UNDER THE HOOD. Then we'll see what the 10 bolt and 12 bolt are made of!!!!!!!!!!!!!!

    '79 K5,13 1/2" lift, 39.5 TSL's,15x12 Eagles,350,t-350,warn 8274,39.5 Boggers for wheeling!
     
  11. 84_Chevy_K10

    84_Chevy_K10 Banned

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    Re: 10 bolts and 39.5\" tires???

    Small block and 39.5 boggers and you're exited? I guess so. My friend with the built 454 says he wants more. I think he's building a 496 or something. I can't see even wanting a small block with that much tire. I hope you've got a stick shift and an awful lot of gear.

    Tim
    '84 Chevy K10, lifted, loud, fast, and 3/4 ton axles
     
  12. not4show

    not4show 1/2 ton status

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    Re: 10 bolts and 39.5\" tires???

    Hey, just do it and let us know what breaks.

    Never put a stupid move passed a stupid person.
     
  13. 77Blazer

    77Blazer 1/2 ton status

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    Re: 10 bolts and 39.5\" tires???

    like someone mentioned earlier just get a 14bolt in the rear and you will be fine as long as you arnt crawling crazy style.

    350, sm465, NP205, 14 Bolt w/Detroit locker(465 ratio), Dana 60 465, 38.5 swampers
     
  14. pcorssmit

    pcorssmit 1/2 ton status

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    Re: 10 bolts and 39.5\" tires???

    I've seen lots of broken 10 bolts on the street w/35" + tires. Knew another guy that blew 2 or 3 9"s in a Bronco w/a 302 and 38s on the street. If you really want to run w/10 bolts, try getting some of the ones from a truck in Illinois, apparantly they are stronger than 1 ton stuff. :D

    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
     
  15. Emmettology 101

    Emmettology 101 3/4 ton status

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    Re: 10 bolts and 39.5\" tires???

    Sometime ago there was a SWB Chevy in Petersen's with 10 bolts and 44's and they were runnin it for a while. I think the key to his success was the 2.73 gears.

    I think that is the key to any combo like that. High gear and big tires.

    Mike

    <font color=green>"It's like a sore dick deal, You cant beat it!"</font color=green>

    <a target="_blank" href=http://www.geocities.com/emmettology101>www.geocities.com/emmettology101</a>
     
  16. Greg72

    Greg72 "Might As Well..." Staff Member Super Moderator

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    Re: 10 bolts and 39.5\" tires???

    E101,

    Boy I sure hope that guy with the 44"s and 2.73 gears has a whole garage-full of extra transmissions!!!! Can you imagine the HEAT that guy must be putting into that tranny? 65 MPH is only 1350RPM......and that's with a NON-overdrive transmission!!!

    .....maybe he just drives it in 1st gear everywhere? [​IMG]

    -Greg72
     
  17. Emmettology 101

    Emmettology 101 3/4 ton status

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    Re: 10 bolts and 39.5\" tires???

    Ya, tell me about it! :) I cant remember what tranny and t-case he was running. I do remember it being tan though!

    Mike

    <font color=green>"It's like a sore dick deal, You cant beat it!"</font color=green>

    <a target="_blank" href=http://www.geocities.com/emmettology101>www.geocities.com/emmettology101</a>
     
  18. californiak5

    californiak5 1/2 ton status

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    Re: 10 bolts and 39.5\" tires???

    Aren't you just a sweetheart?

    [​IMG] <font color=green>Born to Drive My K5</font color=green> [​IMG]

    <a target="_blank" href=http://coloradok5.com/gallery/californiak5>CaliforniaK5's Pictures</a>
     
  19. 6.2Blazer

    6.2Blazer 1/2 ton status

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    Re: 10 bolts and 39.5\" tires???

    Can you do it, well of course you can slap some 39.5's on the 10-bolts........just drive real easy and keep your fingers crossed. I've broken several front 10-bolt parts with 35's and I don't hammer down on the throttle at all and there are not many rocks around here. Sure, if you just drive straight through a slippery mud pit then they might do okay but get out on a rutted trail and it might be another story.
    There's a couple of other guys in my club with fullsize trucks, and they scattered front 10-bolts and Dana 44's left and right with 350's and 38" tires. They have also broken a couple of Dana 60 stub shafts with 42's and big blocks.
    Again, if you watch what you are doing you can get by for awhile, but once you start doing any type of serious wheeling then you might get into trouble.
     
  20. muddin4fun

    muddin4fun 3/4 ton status

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    Re: 10 bolts and 39.5\" tires???

    I'm gonna be running 35's with a 12 bolt and am a little worried about the 12 bolt. I think you would tear that up real quick. Keep it on the street until you can upgrade. You really need a 14 bolt for that size tire.

    It's been lovely, but I have to scream now.

    <a target="_blank" href=http://www.geocities.com/muddin4fun79blazer/>http://www.geocities.com/muddin4fun79blazer/</a>
     

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