Loose hub bolts
77 golden eagle
Jeeper
this is what im talking about..
this is what im talking about..
After reading all of this, I had to run back down to the garage to check mine! Is this problem specific to Warn hubs? My hubs are AVM and they've never come loose, even after the beating I gave them last Sunday at Kansas Rocks with the front locked. Mine are regular old external, and they bolt to the standard 5 bolt hub the same way a Warn does, so you'd think they would have the same problem? I'm just using stainless bolts and lock washers.
Are we talking about the threads in the hub itself, or something in the lockout? I thought the problem was the holes elongating in the lockout that the bolts go through and then thread into the hub?Rescue,
I think for the most part a lot of different hubs have the same problem with loose bolts........I have not given it much thought why they come loose but the most obvious would be just the transfer of torque through the hub , axle and tire...........I have safety wired mine since the 1970's so I never had an issue. Studs, locknuts, locktite, star lock washers are all common fixes that sometimes work........what people tend to not understand is once the thread has been stretched and work hardened by being loosened and tightened over several cycles the thread becomes worn out.
The key in high stress applications is to apply the proper torque and maintain that stretch by some locking devise hence the use of Safety Wire.
If someone has this problem I would heli-coil the threads.
![]()
Are we talking about the threads in the hub itself, or something in the lockout? I thought the problem was the holes elongating in the lockout that the bolts go through and then thread into the hub?
Could the problem be that Warn comes with bolts that are too short? The stainless bolts I'm using go way deep in the hub threads. They're the same length as what came with my AVM hubs when I bought them used.The elongation is the after effect once the bolt comes loose..........if the bolt did not come loose there would be no twisting motion IE; Elongation.
Keep the bolt / thread tight stops the motion & stops the problem...............and yes I am talking about the threads wearing out. Once the bolt is loose and I'm not talking about finger tight, just a 1/16 turn and the thread bore is now subject to a twisting motion and the bore slowly becomes elongated and over sized. At this point the thread will not hold since the contact area in the root of the thread has been upset..........If you have a standard machinery handbook handy there are several chapters on thread design inside.
![]()
Could the problem be that Warn comes with bolts that are too short? The stainless bolts I'm using go way deep in the hub threads. They're the same length as what came with my AVM hubs when I bought them used.
With so many people posting in this one thread that their bolts have come loose, I'd really like to know if every one of them was using Warn hubs? If so, that's a surprise because aren't Warn supposed to be the best?
We use essential cookies to make this site work, and optional cookies to enhance your experience.
-->> CLICK HERE <<-- to see further information and configure your preferences.