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pitman arm nut keeps coming loose....help!

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pitman arm nut keeps coming loose....help!

  #16  
Old 08-27-2009, 11:41 PM
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Originally Posted by jlmotox View Post
Anyone know what size nut it is? I would like to Find one online, I've looked but no luck yet...
I saw it in here one time. Maybe if you do a search...It sounds like the arm is not tight on the spline so it is working on the nut. Maybe a worn spline. Also, the nut might be bottoming out due to the shaft being pulled too far out which could be corrected by a spacer/washer. The spline can wear from a loose nut so it is just a vicious cycle. A washer would also keep the arm from working directly on the nut. Make it safe.
 
  #17  
Old 08-28-2009, 12:03 AM
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For your safety and others on the road make sure you use the proper grade of nut and lock washer. use the wrong one and you can end up killing some one or yourself. I would get the nut from the dealer and make sure you torque it to specs. Steering and suspensions are not the place for novice experimenting. I get nervous every time I see a raised truck going down the road wondering if it was safely put together.
 
  #18  
Old 08-28-2009, 01:32 AM
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I think its a large metric size that nobody carries? Hard to find large sockets at an auto parts store or Sears. Been there done that!
 
  #19  
Old 01-15-2015, 04:41 PM
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Originally Posted by jlmotox View Post
I put on a pro comp 6" lift a few months ago and every week or two I have to crawl under the truck and tighten up that damm pit man arm nut...I can tell when it starts to get loose because the steering wheel gets sloppy...I have put red loctite and have gotten that nut as tight as I can get it with about a 3ft tube on the end of my wrench for extra leverage and still comes loose! anyone else have this problem? any solutions? I'm just about to grab my welder and fix it that way but there must be a better way!

thanks!
The nut for the steering box on pitman arm is a one time use. I had the same problem and had to replace the nut.
 
  #20  
Old 01-15-2015, 06:53 PM
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Ford Pitman nut....hope you are sitting down...



HN2 - Left Hand Drive 4WD (Part Time Drive) Ford 250 Series Ford 350 Series ; M30 x 1.5MM

list price is $45.56
 
  #21  
Old 02-12-2018, 06:50 PM
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Originally Posted by jeep.hauler View Post
Had the same problem with a jeep that has a 5" lift. The drop pitman arm nut would come loose, I noticed that the replacement arm would set higher on the splines then the stock one. The nut would thread on but would reach the end of the threaded shaft before hitting the pitman arm. Added a second lock washer to act as a spacer. The nut has not come loose in over three years of off road abuse. Hope this helps.
That's what I'm going to do i have the same problem with my 93 chevy C1500. That advice though
 
  #22  
Old 02-12-2018, 07:57 PM
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Observations:

(1) Not sure if Pro Comp says OIL the sector shaft or not, but OIL (the presence or lack thereof) WILL affect torque readings !

(2) Need a good torque wrench (0-600 Ft/lbs) --- I use Precision Instruments (who make Snap On) and they work well

(3) The Loctite Red ThreadLocker compound starts going active in 5-10 minutes -- need to get the 350lbs "dialed in" quickly.

I do know the Loctite doesn't always work on hefty bolt/nut combinations (1.25" and above) -- seen this problem on some of my bigger equipment.
 
  #23  
Old 02-12-2018, 09:44 PM
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The nut is meant to be one time use. I've gotten by without replacing it on more than one occasion. You aren't getting enough torque. Put a Craftsman 1/2 inch drive rachet on there and a 6 foot pipe and pull until the rachet explodes then you'll be close. That statement is a joke, but depending on the sector shaft size 350-400ft lbs is in the ballpark. Lube the splines, torque the nut. Remove the nut, add thread locker and retorque the nut. Do not drill the shaft, they are weak enough already.
 
  #24  
Old 02-13-2018, 04:59 AM
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Originally Posted by Just Strokin View Post
Ford Pitman nut....hope you are sitting down...



HN2 - Left Hand Drive 4WD (Part Time Drive) Ford 250 Series Ford 350 Series ; M30 x 1.5MM

list price is $45.56

HoLY CRAP MAN!!!!!

next time warn a guy. I fell out of my chair!
 
  #25  
Old 02-13-2018, 09:03 AM
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  #26  
Old 02-13-2018, 11:34 AM
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Had the same issue here - and yes, it is spec'd as a 1 time use nut. I got a new one from Ford parts for about $20. Put that on with Red Locktight and then added the old one - also with Red as an extra measure of safety. Very carefully grease the face of the nut so the two do not bind when tightening and make sure you only catch the correct nut when you tighten it until your ratchet explodes!! (LOL) Problem solved!!
 
  #27  
Old 02-18-2018, 05:05 PM
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Dude! Not safe! Buy a new nut.
 
  #28  
Old 02-19-2018, 08:36 PM
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Just a thought but are you sure you have the correct pitman arm? I'm not super familiar with your model of truck but getting a pitman arm with the correct spline number/pattern is important for a proper fit. I've changed a few pitman arms and they have always been basically pressed onto the output shaft of the steering box.

Assuming that isn't the issue a locking washer sounds like a good choice. Locktite also make a black option. As far as I know it's one of the strongest versions. To get it to release you have to heat up the nut though.
 
  #29  
Old 02-20-2018, 09:58 AM
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I would go with a new nut, and when I put it on I would go with a thread locker. I prefer the Permatex Ultra Black gasket maker.
 
  #30  
Old 02-20-2018, 12:18 PM
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Red 271 Loctite. Apply to threads, tighten to 350 ft/lb, let it cure for a few hours. It will not come off after that, unless heated to over 500 degrees F.
 

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