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U bolts

Discussion in '1969-1972 K5 Blazer | Truck | Suburban' started by 69K5, Jan 7, 2002.

  1. 69K5

    69K5 1/2 ton status

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    Well my little sister got me some 2 " lift blocks to level up the rear of my blazer. I finally got a moment to put them on and the kit had curved u bolts. my blazer has squared off U bolts that point straight down. I didnt think it was safe to use these so I held off. I can find regular length U bolts but no longer ones. Any ideas on where to get these??? Or is it safe to use these and how. Do I flip that plate that is on the bottom of the axel?? I have a 12 Bolt rear end.
    thanks
    (69K5) Nathan

    69 K5 Blazer Completely stock, but not for long.
     
  2. JMZ

    JMZ Registered Member

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    I ground that plate thing off and used regular u-bolts. My u-bolts where on a truck I bought. I thought I saw some really long u-bolts at O- Riellys in the help section.
     
  3. 69K5

    69K5 1/2 ton status

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    Did you put the plate thing on top of the spring pack so that they would bolt upwards?? (where the nuts are on top instead of hanging down) I went to O reilly's, Autozone, Discount auto, Napa, And Advanced to no prevail. I found long curved ones, but no long square ones.
    Thanks for the Help!
    Nathan
     
  4. Ryan B.

    Ryan B. 3/4 ton status GMOTM Winner

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    4 wheel parts wholesalers has the u-bolts.
    I think First Gen blazers came stock with the u bolts plate and nuts under the axle to where they can get snagged by rocks etc...
    I'd buy the longer u bolts which are bent to go around the axle tube, and put the plate on top of the leaf spring.
    I'd take a few measurements to know the length of the u bolts your after.
    Here's a <a target="_blank" href=http://communities.msn.com/Ryans1972Blazer/picsofryansblazer.msnw?action=ShowPhoto&amp;PhotoID=46>picture</a> of the u-bolts with the plate on top of the leaf springs.


    [Real Men Don't Care About Gas Mileage Or Rapid Tire Wear!]
    Ryan B.
     
  5. 69K5

    69K5 1/2 ton status

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    RyanB

    Thanks man. That was exactly what I needed to see. I didnt want it down so it didnt get hung on stumps and stuff here . I already have the longer curved ones So I can do it early next week. I was just a little shy about taking a grinder to the axel.
    Thanks
    nathan
     
  6. JMZ

    JMZ Registered Member

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    I cut the plate with the holes off and threw it away. Then the axle with the spring perch on top is just like 73 and up except for width. I used regular u shaped u-bolts, with nuts on top. The u-bolts I used were off a 77 with 4`` blocks. I did a homeade shackel flip and made some 3`` blocks that also moved the axle back 1``.
     
  7. Ryan B.

    Ryan B. 3/4 ton status GMOTM Winner

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    No Problem Nathan! [​IMG]

    [Real Men Don't Care About Gas Mileage Or Rapid Tire Wear!]
    Ryan B.
     
  8. 69K5

    69K5 1/2 ton status

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    Thanks for the idea. I think I'll just cut off and use the same brackets since I dont have a donor truck handy.
    thanks again
    nathan
     
  9. POFF

    POFF 1/2 ton status

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    FYI: A lot of spring shops make their own u-bolts. You can get them in any length you want.

    '70 K-20 San Diego, CA
    I know, I can't spell!
     
  10. codagoshi

    codagoshi Registered Member

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    I recently put a four inch lift on my 72', front was springs, rear was block. I was able to get squared 5/8" u-bolts off the shelf from Advanced Auto. Just like the factory, but four inches longer, and then some. One store had two, and another down the street had two more. Taking a grinder to an axle can be a dangerous thing, unless you have another axle. Just a FYI...

    Jim Riley
    72 CST Blazer 4x4
     
  11. 69K5

    69K5 1/2 ton status

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    thanks for the tip. i may wait and see about the bolts. how much were they???
    thanks
    nathan
     
  12. JIMs70K25

    JIMs70K25 1/2 ton status

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    Nice truck.


    <a target="_blank" href=http://community.webshots.com/user/70gmc>My 70 GMC</a>
     
  13. codagoshi

    codagoshi Registered Member

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    The u-bolts cost 5.99 per u-bolt. So $24 for the rear axle. I had some U-bolts bent for the front of my truck, and they cost $9 per u-bolt at a local axle shop.

    Jim Riley
    72 CST Blazer 4x4
     
  14. 69K5

    69K5 1/2 ton status

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    Jim,
    thanks for the quick reply. I'll go see if I can find some around here,
    nathan
     
  15. POFF

    POFF 1/2 ton status

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    Thanks Jim

    '70 K-20 San Diego, CA
    I know, I can't spell!
     
  16. JTB

    JTB 1/2 ton status

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    I have two sets of U bolts for my blazer, it has been converted to the 73 and later style (U bolts not square) and i will sell you a set if they are the right size. Mine are 10" long and for a 12 bolt rear end.
    Jeff
     
  17. 69K5

    69K5 1/2 ton status

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    thanks for the chance, but by the time i got around to reading this i already got some. thanks anyway.
    nathan
     

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