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FrontDana44 - What tire size is too big to>>>>

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Burt4x4, Apr 23, 2001.

  1. Burt4x4

    Burt4x4 3/4 ton status

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    Ok here are the specs the D44 is running in. I just want to know what tire size is the limmit to a D44 before parts start to stress while inuse due to the tires being too big. Average to hard wheelin is the teritory and the rig has 350 board and built for lowend torque, CenterForce Cluch in a SM465 thru a 205xfer. The D44 is stuffed with Power-Lok, 4.10s, CromeMoly shafts and Warn Pemimums with a fuseable ring thingy.......
    Oh 15x10 rims and wheelwell clearance is not an issue.......
    So I know 33" is working great(mud tire) I want Swampers now so but don't care about looks more function......
    So whats too big
    35
    36
    38

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
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  2. freeforever

    freeforever 1/2 ton status

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    38-44 would be my guess?


    ---------------
    "A closed mouth gathers no foot."
     
  3. Emmettology 101

    Emmettology 101 3/4 ton status

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    I would say you could get away with 38's with some throttle fanaglling... Maybe even 40's if you really pay attention to it...

    Mike - <A target="_blank" HREF=http://emmett.coloradok5.com>http://emmett.coloradok5.com</A>[​IMG]
     
  4. Burt4x4

    Burt4x4 3/4 ton status

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    Wow allot bigger than I was thinking.
    I was thinking the 36" TSL was pushing the envelope or increasing the chance for front end carnage/snaping and poping......stressss

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  5. walt88

    walt88 1/2 ton status

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    I run 35"s on some stock 10-bolt daily, don't worry about it.

    [​IMG]<font color=red>1988 Chevrolet K5 Blazer, Middletown, NJ (07737).</font color=red>
     
  6. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    I'm running 36" Swampers with my Dana 44...stock shafts, no fuse thingy [​IMG]and 3.73's open. I haven't had a problem, that doesn't mean I won't though. Yours sounds like it has the right parts to survive more punishment. I would say 38's if you're even reasonably careful. 36's no probs at all.

    Rene...if yer 44 breaks you never read this [​IMG]

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  7. extremeblazer

    extremeblazer 1/2 ton status

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    Most people seem to think 35 inch is the biggest tire on a 44. I ran your same combo of engine, tranny and gears. Stock axle shafts and no fusable rings with 36 inch Super Swamper SX's. I did snap a cheap U-joint once and kill the axle shaft, but less throttle would of helped. I'm going with 38.5 Sx's and am Upgrading to a Dana 60 for less stress. I think 38.5 would work fine if you know when to keep off the gas, check joints regularly and axle truss it.
     
  8. Emmettology 101

    Emmettology 101 3/4 ton status

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    You have a pretty stout 44 with the moly axles, fuses, hubs, etc...

    As long as your right foot isn't the size of California, you should be fine... If you treat it gentle like a woman, then I dont see you having a problem...

    Mike - <A target="_blank" HREF=http://emmett.coloradok5.com>http://emmett.coloradok5.com</A>[​IMG]
     
  9. Burt4x4

    Burt4x4 3/4 ton status

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    Ok kewl then the 36ers would be fine! 33" to 36" isn't that much diff in weight, is It?
    Anyway thanks for the comments!!

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  10. Emmettology 101

    Emmettology 101 3/4 ton status

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    I have been running 35x15.50x15's with a stock D44 for about two years with only one broken shaft...

    I think you will be fine with 36's.... Especially with the alloy shafts and stuff...

    Mike - <A target="_blank" HREF=http://emmett.coloradok5.com>http://emmett.coloradok5.com</A>[​IMG]
     
  11. 6.2Blazer

    6.2Blazer 1/2 ton status

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    I think the biggest factor is how you drive the vehicle, but 36's should be okay if you are a reasonable driver. Just be aware of what type of situation the front tires are in when climbing obstacles. The biggest problem I have had with the Dana 44 and 10-bolt fronts is breaking the axle shaft u-joints, but this has only happened with the tires turned sharp to one direction and stuffed in a rut........the u-joints effectively lose strength the more the wheels are turned so try to keep the front tires a straight as possible if you have to throttle over an obstacle. Even with the fusible hub rings, you still have a good chance of breaking the u-joint first if you are at full steering lock.
     
  12. Ryeguy

    Ryeguy 1/2 ton status

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    I'd say 36" even with the chromemoly shafts. I've got 36"
    SX's on my truck, weighs in at 5k lbs, dual T-case (116:1),
    I've broken stock front D44 shafts at idle, bull low gear.

    Your stronger shafts should help out, but your Blazer is
    likely heavier than my Comanche (building a Blazer which is
    why I'm on the list). Plus, my bigger concern would be the
    strength of your brakes. You need lots bigger brakes (in
    addition to the other stuff) to stop the bigger meats. That's
    something most people forget.

    I didn't break a single part with 35's, I've broken 4 stock front
    axle shafts with 36's. I've got a Detroit in the front diff, and
    I've since switched to high grade Spicer U-joints, and things
    have gotten better (still, my first broken shaft twisted off at
    the ends of the splines).

    --Rob
     
  13. Burt4x4

    Burt4x4 3/4 ton status

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    Ya I hear ya on the brakes, I have a D60rear with some fat drums on it and I can brake/stop my rig perrty good right now with my 33"ers so I should be fine..... I think I'm just gonna get a set of 33"TSLRadials....I don't know.....back and forth ,,,can't make up my mind/.........................oh well I'll just drink a 'S' load of beer then place my order completly smashed, then wait to see what comes to my door[​IMG] 33x12.50-15 [​IMG]36x12.50-15

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
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  14. Ryeguy

    Ryeguy 1/2 ton status

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    *grin* Well, in that case, while you're in that drunken stupor,
    order in a set of 44's (on 16.5" please) for me, and have 'em
    delivered up here. :-)

    Good luck,

    --Rob
     
  15. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

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    Depends on how you drive, climbing steep inclines will find your weak spot in a hurry (Moab). I broke 44 ujoints with my 36's twice but was climbing both times.
    I love my 60, hammered it a few times climbing in Moab and it just smiled and said "Thank you may I have another".

    Steve
    [​IMG]
    Mall-Running poseur 4x4 with curb-feelers
     
  16. BIGCHEVY

    BIGCHEVY Registered Member

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    i have 38.5x15x15 gumbo mudders on my dana 44 and i have had no problems with it. my friend has 44 inch gumbo's on his 80 short box 3/4 ton with a dana 44 in the front and he's only had to do wheel bearings once. he's never broke anything in it.

    IF IT AIN'T BROKE,YOU AIN'T TRYING HARD ENUFF
     

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