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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Torque specs

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Old Aug 15, 2019 | 08:52 PM
  #1  
TorqueyBrick's Avatar
TorqueyBrick
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Torque specs

Hey all,

It's a 1989 f250 but it has 6 leaf springs and f350 was stamped into the stock riveted mounting gear all around.. idk why? and if that changes the specs but here it goes.

I've removed the rear leaf spring mounts( held on with rivets ), and old bushings in the leaf spring eye which was a PITA. I then made a homemade all thread press and got the new bushings in which was also a PITA 1/2 thread is needed at least. I'm ready with the entire new mount for both sides but I'm not sure what to torque the bolts to?
-Mount to truck frame?
-shackle to mount?
-shackle to leaf spring?
I've found diagrams showing 100ftlbs for the longer shackle bolts, but i'm not sure if its correct. I have found nothing on the bolts for the mount to frame situation.

Also should loctite be used on any of this ? (Thinking possibly the mount to frame bolts)

Thanks for any inputs !

-Steve
 
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Old Aug 16, 2019 | 10:35 AM
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sandymane
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From: Houston/Sugar Land
Here are the torque specs from my Haynes manual. I can't see where blue loctite would hurt anything. Sandy



 
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Old Aug 16, 2019 | 11:18 AM
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Sandy,
Thank you for the specs! and the reminder that i do need a Haynes of my own which ill get this weekend.

Does anyone have advice on what to torque the spring mounts and shock mounts to the truck frame down to? (which i probably will be using loctite on if there is no issue with that).


-Steve
 
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Old Aug 16, 2019 | 12:28 PM
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Freightrain
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I would follow this for guidelines.





I don't typically use lok tite on bolts. Tightening them properly will hole them just fine without lok tite. Use of a lock washer would also work just fine. Though most don't use flange nuts/bolts, those frame brackets would be a good place to use them. They making self locking style.




 
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