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are these nuts ok? *pics of my nuts inside*

Discussion in 'The Garage' started by 78Suburban, Jul 14, 2006.

  1. 78Suburban

    78Suburban 1/2 ton status

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    [​IMG]

    when I had one new u bolt made, the spring shop gave me the u bolt and nuts in the right side of the picture. They're not all metal lock nuts, but they are long nuts and have alot of threaded area. Will these be ok? I'm about to get some new u bolts made for the rear axle, and I was wondering if I can just get this style nut at the spring shop, or if I need to search around and find some 5/8" all metal lock nuts?

    thanks,
    James
     
  2. cegusman

    cegusman 3/4 ton status

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    Those are fine, I run them on all 4 corners.
     
  3. BranndonC

    BranndonC 3/4 ton status

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    yeah thats what most ubolt shops give out, they should be fine. maybe mark the threads some how to see if they ever back out
     
  4. WhiteBurb

    WhiteBurb 1/2 ton status

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    Your nuts are long, just like mine. :p: They'll be fine.
     
  5. MTChevy

    MTChevy 3/4 ton status Premium Member

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    nice nuts, mine look just like yours
     
  6. sweetk30

    sweetk30 professional hooker Premium Member

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    i worked springs for 1 year. thay are fine. no problems. but dont ever try to reuse that style or any ubolt for that mater. not a good practice. i found out the hard way on my rid. almost lost front axle.:eek1: :mad:
     
  7. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    I persoanlly would not use a nylock nut since they aren't a hardened nut. You would be better off using a pinch lock nut over a nylock nut any day. You should be able to get some tall hardened nuts from the local hardware store. Also, the washers you have under those nylock nuts aren't hardened washers either and that in itself will allow the nuts to come loose.
     
  8. DavidB

    DavidB 1/2 ton status

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    Right on all counts. NYLOCS ARE THE DEVIL.

    If you wanna be sure, use a hard washer, then a high nut, then a crimp (stover) nut. Torque it to proper spec and check it.
     
  9. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Those long nuts and thick washers are the ONLY types I will run on any u-bolts on any of my vehicles. Make sure to use Lock-Tite, too.
     
  10. DavidB

    DavidB 1/2 ton status

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    Might the lock-tite give a false "read" when/if you retorque them? Pretty sure you're supposed to.
     
  11. thatK30guy

    thatK30guy 1 ton status Premium Member

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    I've always cleaned mine up real good before retightening them. Especially using a wire wheel on the threads to clean them up, too.
     
  12. DavidB

    DavidB 1/2 ton status

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    Eh....what I'm thinking of is, you're supposed to install them, drive it 100 or 500 or 1000 mile or something, then retighten (torque to spec) them. Not take 'em off clean 'em and put 'em back on...we talking the same thing? :dunno:
     
  13. 78Suburban

    78Suburban 1/2 ton status

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    how many ft/lbs is torqing to spec on a 5/8" u bolt?
     
  14. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Oh yeah, you're right, but if you lock-tite them, and recheck after the mileage and find the nuts dont turn anymore after the torque wrench has clicked, then you know the LT is working, right?
    Now if you didnt LT them, yes, the nuts probably will back off slightly but thats why I use the stuff in the first place and I've never had a nut back off on me, ever.
     
  15. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Average I've read is around 125 ft. lbs.
     
  16. cybrfire

    cybrfire 1 ton status Vendor GMOTM Winner

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    Just an FYI, Nyloc nuts are available in grade 8 form. I have them in the shop for spring eye bolts and such in 9/16" size. Here's a shot of them off my website.

    [​IMG]

    I do agree though, U bolts should use the longer nuts. The increased length makes for less vibrating loose, added to the fact that they are fine thread. Good combination for resisting vibration. Most times after initial torque, the second torque you will get a little more out of it, I don't believe the nut has loosened but more the ubolt has taken a set to the shape of the axle rather than the shape of the die it was bent around.
     
  17. DavidB

    DavidB 1/2 ton status

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    I don't think the reason you retorque them is in case they back off - it's because they stretch, conform, and settle a little bit as you drive, so you retorque to take up the "slack".

    EDIT: Cybr and I are saying the same thing at the same time.
     

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