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  1. #1
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    Aug 2011
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    North Central Illinois
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    John Deere 790, Case 380B

    Default Need to buy a box blade for a 30hp Deere 790

    Need to buy a Box Blade for a Deere 790 Compact, its 4wd, 30hp Yanmar. Anyhow, the width of the back tires is about 50" on the outside, Im thinking a 4' box is too small, probably need a 5', was wondering if I should go 6' or am I way too big at that point ?

    Ive run a blade on several tractors over the years, mostly bigger than 50hp, so I know what Im doing, I know how not to burn up the tractor, just looking for some real world feedback on a smaller tractor.

    The use is annual cleaning up of the lane (about 600' of gravel), and general smoothing out of black dirt around the house and buildings. Pretty light duty use, thats why Im wondering if maybe I cant get away with a 6 footer ?

    Thanks for the input, Windy.
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  2. #2
    Gold Member
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    Dec 2003
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    364
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    OH
    Tractor
    Ford 851/ JD 770 MFWD

    Default Re: Need to buy a box blade for a 30hp Deere 790

    I would go with the 5'. You will run out of traction before hp, especially with turfs.

  3. #3
    Super Member
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    Cedartown, Ga and N. Ga mountains
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    1998 Kubota B21, 2005 Kubota L39

    Default Re: Need to buy a box blade for a 30hp Deere 790

    I would vote for a 5' also. Even with light duty use a 5' box blade when filled will leave you without traction. I would want as wide as the tractor tires though.

    MarkV

  4. #4
    Veteran Member foggy1111's Avatar
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    Nisswa, MN
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    JD 3320 eHydro w/ 300CX Loader

    Default Re: Need to buy a box blade for a 30hp Deere 790

    I had a 790 with 30 HP.....and had a five foot box blade on the back. Was the right size IMO.
    3320 eHydro, 300CX Loader & 15 + great attachments

    You gotta mine allot of dirt to find a diamond.

  5. #5
    Veteran Member kebo's Avatar
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    May 2006
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    2,304
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    Lexington, SC
    Tractor
    2001 John Deere 790 4x4, bar tires

    Default Re: Need to buy a box blade for a 30hp Deere 790

    X2 what foggy said. I use a 5ft BB, and can stall out my 790 with (unloaded) R4's and a BB full of material. I notice you have turf's so that will limit your traction a bit more. Just learn the limitations of your tractor with whatever size BB you get and stay within that. Good luck!
    Nothing could be finer than riding my JD790 in South Carolina!!

    2001 John Deere 790 4x4 with Model 70 FEL, 5ft International World Agritech bush hog, 5ft Wallberg BB, 5ft Frontier disc harrow, 5ft King Kutter II Rototiller, 5ft Cultipacker, 5ft Sitrex finish mower, Leinbach PHD with 9" & 12" augers, Leinbach middlebuster, Leinbach #11 Field Cultivator, boom pole, custom 3pt handi-hitch, clamp on bucket forks, Pat's Easy Change.

    Nothing runs like a Deere, or smells like a John....

  6. #6
    Veteran Member KB9UDE's Avatar
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    North of Tower Hill, IL
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    John Deere 3320

    Default Re: Need to buy a box blade for a 30hp Deere 790

    I would say a 5ft also.
    John






    John Deere 3320 - 72D Auto Connect deck



    Acts 2:38

  7. #7
    New Member
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    North Central Illinois
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    John Deere 790, Case 380B

    Default Re: Need to buy a box blade for a 30hp Deere 790

    5' it will be, thanks for the input, fellas!

  8. #8
    New Member
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    North Central Illinois
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    John Deere 790, Case 380B

    Default Re: Need to buy a box blade for a 30hp Deere 790

    Follow up post, I bought a "King Kutter" 5' box, and you guys where right, 6' would be too much. Doing a light cut on my crushed limestone drive, I have to use the 4wd. Same goes for pulling in the dirt, I run out of traction, have to have it in 4wd.

    I can see where the 6' would be a bit much, thanks again for the advice, Windy

  9. #9
    Member 2549's Avatar
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    Aug 2011
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    JD790 2WD

    Default

    That's food for thought... I've been considering a five foot box for my turf tire'd 2wd JD790. I'm beginning to have doubts.

  10. #10
    New Member
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    North Central Illinois
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    John Deere 790, Case 380B

    Default Re: Need to buy a box blade for a 30hp Deere 790

    Quote Originally Posted by 2549 View Post
    That's food for thought... I've been considering a five foot box for my turf tire'd 2wd JD790. I'm beginning to have doubts.
    Ive got a 4' box (left over from a 19hp Ford 1700), but Ive never pulled it behind the 790. You can pull the 5', your cut is going to have to be shallow, and I dont think you will be able to fill up the box (with heavy materials) and cut at the same time.

    The traction problems in 2wd occur when turning sharp corners with a full box and cutting, and when starting out with a full box. It can be done, you will just have a slight learning curve as to what you can and cant do.

    I wanted turf tires on mine, my last tractor had the standard traction "chevron" rear tractor tires, and left too many marks everywhere I went being that its used mostly for lawn maintenance/care, or spends most of its time on grass, not in the dirt.

    The other thing I have not tried, nor will I, is pulling the box is any kind of "wet" dirt, even with 4wd, I imagine that it wont move with the turf tires.

    Good luck, Windy.

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