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Leaking Diff cover after Kelderman dual stabilizer

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Old Sep 9, 2021 | 06:59 PM
  #16  
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Put my Kelderman dual steering stabilizer on a few months ago and noticed today it's leaking as well. I also used the spacer too because it seemed needed to get all the parts mounted and aligned properly. Has anyone contacted Kelderman about this? I may just pull the two bolts and add a generous amount of permatex like others have done.
 
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Old Sep 9, 2021 | 09:43 PM
  #17  
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Was ready to order the kelderman. Now thinking PMF…
 
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Old Sep 9, 2021 | 09:51 PM
  #18  
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Originally Posted by Section179
Was ready to order the kelderman. Now thinking PMF…
I think pulling those two bolts is what compromised the gasket, not necessarily the Kelderman kit itself. If PMF doesn't rely on those bolts then you should be fine, but if it does, you'll probably have the same problem. I took some pics earlier for my own reference but will put them here for others to see.
 
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Old Sep 18, 2021 | 07:40 PM
  #19  
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A few days ago I cleaned up the oil, pulled the two bolts, and liberally added some Permatex to each. So far so good, but we'll see over time if the leak is addressed.
 
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Old Sep 19, 2021 | 09:30 AM
  #20  
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Originally Posted by mcmurm
I think pulling those two bolts is what compromised the gasket, not necessarily the Kelderman kit itself. If PMF doesn't rely on those bolts then you should be fine, but if it does, you'll probably have the same problem. I took some pics earlier for my own reference but will put them here for others to see.
I see you are also having the same issue as many of us with the cross member coming into contact with the mounting bracket for the Kelderman. About all you can do is grind it down until it no longer makes contact.
 
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Old Sep 19, 2021 | 11:15 AM
  #21  
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Originally Posted by SARDiverDan
I see you are also having the same issue as many of us with the cross member coming into contact with the mounting bracket for the Kelderman. About all you can do is grind it down until it no longer makes contact.
Sorry, I'm not following. Which piece are you referencing as the cross member?
 
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Old Sep 19, 2021 | 07:21 PM
  #22  
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Sorry, I am not good at explaining things but my photo editing is not much better.




This spot impacts the bracket and essentially limits your suspension travel. In other words, this limits the smooth operation of your springs/shocks. I first noticed it going over a speed bump and I felt that sudden stop instead of a nice easy up and down motion that I would expect. Several people have called them and as they did with me, I’m the first person to call with this issue when I know others have called with similar results. When I called they recommended that I grind it down in increments until it is no longer an issues with suspension travel. The other option was to go with another system. I took a grinder to mine and took it down a bit and repainted it to see if makes contact. As I just had shoulder surgery, I won’t be under my truck anytime soon to see if I need to remove more material.
 
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Old Sep 19, 2021 | 07:51 PM
  #23  
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Originally Posted by SARDiverDan
Sorry, I am not good at explaining things but my photo editing is not much better.


This spot impacts the bracket and essentially limits your suspension travel. In other words, this limits the smooth operation of your springs/shocks. I first noticed it going over a speed bump and I felt that sudden stop instead of a nice easy up and down motion that I would expect. Several people have called them and as they did with me, I’m the first person to call with this issue when I know others have called with similar results. When I called they recommended that I grind it down in increments until it is no longer an issues with suspension travel. The other option was to go with another system. I took a grinder to mine and took it down a bit and repainted it to see if makes contact. As I just had shoulder surgery, I won’t be under my truck anytime soon to see if I need to remove more material.
Ah, I was unaware of this, but I see what you're talking about. Thanks for the heads up and looks like I need to do some grinding.
 
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Old Sep 19, 2021 | 07:53 PM
  #24  
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I have the BDS dual system on both my 19’s
 
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Old Sep 20, 2021 | 01:22 AM
  #25  
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Fwiw, those bolt holes don't go all the way thru into the oil. The only way oil could seep out thru the bolt holes is if the seal breaks

The bracket is probably tweaking the diff cover enough to break the seal.....

Another reason that a dual stabilizer is a waste. if you need a dual stabilizer it's because you have something else going on.. you only need one..
 
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Old Sep 20, 2021 | 06:01 AM
  #26  
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Originally Posted by Norcalpr
Fwiw, those bolt holes don't go all the way thru into the oil. The only way oil could seep out thru the bolt holes is if the seal breaks

The bracket is probably tweaking the diff cover enough to break the seal.....

Another reason that a dual stabilizer is a waste. if you need a dual stabilizer it's because you have something else going on.. you only need one..
Dual doesn’t mean something is going on
 
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Old Sep 20, 2021 | 06:23 AM
  #27  
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I think the best method when putting these on is to pull the cover, do a fluid change and use Permatex and not a preform gasket. Seems like quite a few guys have leaks after.
 
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Old Sep 20, 2021 | 08:36 AM
  #28  
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Originally Posted by Norcalpr
Fwiw, those bolt holes don't go all the way thru into the oil.
I don't think this is true. I didn't pull my diff cover off to look, but I called Kelderman and spoke with Kyle. He explained that when the diff cover is sealed from the factory the amount of sealant used is inconsistent. Sometimes there's enough that when the bolts are removed oil won't drain into the tapped hole. Other times there isn't enough sealant so oil does drain once the bolt is removed. This lines up with my experience when fixing the problem. After removing the bolts to apply Permatex, fresh oil was clearly draining from inside the tapped hole. It was fresh, clean, clear, gear oil. You could smell it without even putting it to your nose.

This tells me that the holes are tapped through and exposed to the oil.
 
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Old Sep 20, 2021 | 09:19 AM
  #29  
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>Several people have called them and as they did with me, I’m the first person to call with this issue when I know others have called with similar results. When I called they recommended that I grind it down in increments until it is no longer an issues with suspension travel. The other option was to go with another system.

Yikes, I like this system - far better in my opinion that using U-Bolts... but that's not good. Seems like poor engineering and not standing behind their design.

 
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Old Sep 20, 2021 | 11:37 AM
  #30  
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Originally Posted by f350larry
>Several people have called them and as they did with me, I’m the first person to call with this issue when I know others have called with similar results. When I called they recommended that I grind it down in increments until it is no longer an issues with suspension travel. The other option was to go with another system.

Yikes, I like this system - far better in my opinion that using U-Bolts... but that's not good. Seems like poor engineering and not standing behind their design.
I agree - I really like the system too. It's super solid and its avoidance of u-bolts kicks it up a notch, but this clearance issue really seems like a rookie mistake.
 
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