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  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » Axle U-bolt torque

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    4/27/2014 6:09 PM  #1

    Nasty65
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    Registered: 4/21/2013
    Posts: 118

    Axle U-bolt torque

    Lincoln versaillies rear housing, 1/2" fine thread u-bolts, how tight to torque them?

     

    4/27/2014 8:21 PM  #2

    Daze
    Forum Moderator & Bash host 2011

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    From: Kalispell MT
    Registered: 1/24/2013
    Posts: 1,129

    Re: Axle U-bolt torque

    u-bolt is probably mild steel

    If it isn't broken...modify it anyway! http://www.DazeCars.com https://galaxieforum.boardhost.com
     

    4/27/2014 10:14 PM  #3

    rpm
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    From: Bakersfield, Ca
    Registered: 9/17/2013
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    Re: Axle U-bolt torque

    The shop that made mine said they were grade 8. Yep, I was suprissed too.

    Bob. 69 Mach 1, 393W, SMOD Toploader, Armstrong  steering, factory AC.
     

    4/28/2014 11:18 AM  #4

    Daze
    Forum Moderator & Bash host 2011

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    From: Kalispell MT
    Registered: 1/24/2013
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    Re: Axle U-bolt torque

    I just added some threads to a set of OEM u-bolts and they cut like butter. I have threaded both grade 5 and grade 8 and it cuts differently. I would think aftermarket ones would be grade 5 or 8 but I am betting OEM units are unfortunately mild steel.

    If it isn't broken...modify it anyway! http://www.DazeCars.com https://galaxieforum.boardhost.com
     

    4/28/2014 5:39 PM  #5

    MS
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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,137

    Re: Axle U-bolt torque

    Torque them until you see the shock plate start to bend, then stop.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    4/29/2014 7:49 PM  #6

    MS
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    From: Canyon Lake, Texas
    Registered: 1/24/2013
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    Re: Axle U-bolt torque

    Are you sure they are 1/2" bolts?  Every Mustang or Versailles ubolt I have come across was 7/16" diameter.  If you torque that to same torque as a 1/2" bolt, you may have extra pieces that you cannot use.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    4/30/2014 9:33 AM  #7

    Nasty65
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    Registered: 4/21/2013
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    Re: Axle U-bolt torque

    Thanks for the replys.  They are 1/2" u-bolts, not the factory ones.  I'm using the TCP spring plates I picked up on here a little while back, they look pretty stout........better not  "tighten til I see them start to bend".

       •Thread Starter
     

    4/30/2014 11:40 AM  #8

    Hornman
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    From: Mansfield, Texas
    Registered: 4/01/2013
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    Re: Axle U-bolt torque

    I got 1/2" fine thread U bolts with my Currie large bearing rear end. Their installation instructions specifies 45 ft lb. Torquing the four nuts to 45 looked like plenty of "tight". Considering the problems Tubo had with his first set of fiberglass springs not being tight enough, tight is good.

     

     

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