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Old May 18, 2018 | 09:00 AM
  #1  
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Help identify this thread pitch

What size of thread are these 4 holes. Thanks
 
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Old May 18, 2018 | 03:52 PM
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Im gonna guess 10X1.5 (because Ford, and everyone else uses that size a lot).

If it looks similar to a 3/8, Ill all but guarantee its 10x1.5. Thats also what I used when I installed the overload brackets to the frame of my 1999 F 250 (way back when).
 
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Old May 18, 2018 | 06:11 PM
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^^^^^^^^^^^^^^ What he said ^^^^^^^^^^^^^^
 
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Old May 18, 2018 | 09:30 PM
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What are they for?
 
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Old May 18, 2018 | 10:09 PM
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On my F350 these are for the overload brackets which have a rubber pad attached, that contacts the upper leaf spring if/when the bed is heavily loaded.
 
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