Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

neat trick for pesky u-bolts

Discussion in 'The Garage' started by supersize75k5, Dec 17, 2006.

  1. supersize75k5

    supersize75k5 OrganDonorRacing.com

    Joined:
    Feb 3, 2004
    Posts:
    8,832
    Likes Received:
    4
    Location:
    gilbert az
    had to swap springs out of the 86 today, well the u-bolts I had made were just a tad off and they would involve ALOT of grunt work..


    easy trick, use two hose clamps, put them together at the threads, tighten the hose clamp and walla..no grunt work, plates slide over the threads like cake:laugh:
     
  2. cybrfire

    cybrfire 1 ton status Vendor GMOTM Winner

    Joined:
    Dec 15, 2002
    Posts:
    15,142
    Likes Received:
    568
    Location:
    Iowa
    a large channel lock works well too.
     
  3. supersize75k5

    supersize75k5 OrganDonorRacing.com

    Joined:
    Feb 3, 2004
    Posts:
    8,832
    Likes Received:
    4
    Location:
    gilbert az
    wee nevermind all my happyness anyways,

    just twisted a tube on my freaking 14 bolt:mad: :( :doah:
     
  4. readymix

    readymix 3/4 ton status

    Joined:
    May 30, 2004
    Posts:
    6,706
    Likes Received:
    26
    Location:
    Murrieta, California
    strut compressor.
     
  5. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

    Joined:
    Jul 23, 2000
    Posts:
    36,180
    Likes Received:
    1,388
    Location:
    E-town baby!
    I use my hands...

    Rene
     
  6. UseYourBlinker

    UseYourBlinker 1 ton status

    Joined:
    Jun 7, 2000
    Posts:
    11,117
    Likes Received:
    0
    Location:
    .
    X2 never really had a problem with U-bolts :confused:
     
  7. GotLabs

    GotLabs 1/2 ton status GMOTM Winner

    Joined:
    Jul 30, 2005
    Posts:
    2,795
    Likes Received:
    0
    Location:
    Transient, USA
    x3, MAN UP!
     
  8. gmc4cw

    gmc4cw 1/2 ton status GMOTM Winner

    Joined:
    Jul 19, 2006
    Posts:
    3,907
    Likes Received:
    0
    Location:
    west chester, Pa
    thats the way I did it when I put a 14 bolt in using 10 bolt plates. then when I swapped again I got the right plates.

    but I am geussing the shop who made yours made them slightly off. you should sue them for having to work so hard.:rolleyes:
     
  9. beater_k20

    beater_k20 Banned

    Joined:
    Dec 9, 2003
    Posts:
    10,276
    Likes Received:
    0
    Location:
    Elkhart, IN
  10. peterpan

    peterpan Registered Member

    Joined:
    Aug 18, 2006
    Posts:
    95
    Likes Received:
    0
    Location:
    WYOMING
    i also use a set of large channel locks
     
  11. lurtch-k20-(78-90)

    lurtch-k20-(78-90) Registered Member

    Joined:
    Nov 8, 2006
    Posts:
    55
    Likes Received:
    0
    Location:
    Troup, tx
    I also DON'T have a large set of channel locks:D , so I like the Idea of the hose clamp, until I can get them, to use on not so spung right ubolts.
     
  12. MaxPF

    MaxPF 1/2 ton status

    Joined:
    Apr 13, 2006
    Posts:
    2,207
    Likes Received:
    0
    Location:
    Chandler, Arizona
    I just s**tcanned the u-bolts altogether :D

    [​IMG]
     
  13. mr.smartass

    mr.smartass 1 ton status Premium Member

    Joined:
    Aug 10, 2004
    Posts:
    10,860
    Likes Received:
    4
    Location:
    Hattiesburg, MS
    Yes, and your design still scares me... no I'm not saying it's gonna mess up it just looks like it's going to...
     
  14. supersize75k5

    supersize75k5 OrganDonorRacing.com

    Joined:
    Feb 3, 2004
    Posts:
    8,832
    Likes Received:
    4
    Location:
    gilbert az

    freaks me out too...if I saw this on a heavy truck/semi/rv I would be pissed

    being that I use to be around a sping and u-bolt manufacture and service center, I can say it would have pics taken and hung on the wall if they saw something like this.
     
  15. rdn2blazer

    rdn2blazer 1 ton status Premium Member

    Joined:
    Jun 9, 2004
    Posts:
    16,487
    Likes Received:
    1,192
    Location:
    So Cal.
    besides the fact that that setup will not slide over rocks as well as regular U bolts will. its probably pretty strong actually, but NO I would not ever run that setup. good for a quick trail repair....maybe.
     
  16. Drey

    Drey 3/4 ton status

    Joined:
    May 8, 2003
    Posts:
    8,288
    Likes Received:
    0
    Location:
    Iowa
    :rolleyes: I merely look at them and the suck together cuz they know what sinister things im capable of:D
     
  17. 79k20350

    79k20350 3/4 ton status

    Joined:
    Nov 22, 2004
    Posts:
    7,757
    Likes Received:
    1
    Location:
    Ct
    :haha::haha::haha:
     
  18. MaxPF

    MaxPF 1/2 ton status

    Joined:
    Apr 13, 2006
    Posts:
    2,207
    Likes Received:
    0
    Location:
    Chandler, Arizona
    So, explain to me what is wrong with it. The top plate is 1/2" steel with reinforcement braces welded on, the bottom plates are stock GM NBS, and it is held together with four 9/16" grade 8 bolts and all metal lock nuts. The stresses are no different from the stock NBS mounting arrangement. In fact, they are better because they have no sharp 90 degree bends with high stress concentrations where the original NBS bolts wrapped around the springs.

    One thing to remember about spring shop u-bolts: SAE specs say that 9/16" and larger u-bolts should be grade 8. In order to make a grade 8 fastener, you do all your forming, and then you heat treat the part. This is opposite of what spring shops do. Assuming their threaded rods are even grade 8 (which I doubt), then by forming them into a u shape they are stretching a heat treated part. This definitely weakens the material, yet nobody questions the strength of them when they bolt em onto their rigs. They don't (normally) break, and I guarantee they aren't as strong as my setup.

    You can examine them firsthand when we do the Martinez run. I think you will find they aren't as scary looking as you think ;)
     
  19. blaznjon

    blaznjon 1/2 ton status

    Joined:
    Mar 6, 2004
    Posts:
    153
    Likes Received:
    0
    Location:
    Seaside CA.
    I use medium size welding vise grips to pull u bolts in.The work good for pushing caliper pistons in too.I was told along time ago that the reason U bolts are used on trucks is the give or elasticity of the u bolts.They are supposed to give enough not to loosen up much.The same person "Grandpa" told me that Straight bolts are for clamping together and not side loads or repeated loads on the bolt it self.The torque or prestrech on the bolt is to hold surfaces togather and not load and unload the bolt.Does that make eny sense ?.
     
  20. MaxPF

    MaxPF 1/2 ton status

    Joined:
    Apr 13, 2006
    Posts:
    2,207
    Likes Received:
    0
    Location:
    Chandler, Arizona
    The reason u-bolts are used is because they are inexpensive, and therefore save the manufacturers money. U-bolts don't require forging to manufacture like bolts do. They just need to have the threads rolled, bent into shape, and heat treated. If they used an arrangement like mine then they would need four bolts plus another plate. More parts = more money. U-bolts are simple, inexpensive, and they work. There is no magic or voodoo related to u-bolts.

    I was originally going to use u-bolts, but no local shop had any good ones (i.e. heat treated after bending and zinc dichromate coated) in the proper length for a 3-3/8" axle tube. I would have had to order them and wait a week, and I didn't have the time. I was able to get the long bolts locally and get the install finished within my original timeframe. It has worked just fine, so I see no reason to change it.
     

Share This Page