Leaking Diff cover after Kelderman dual stabilizer
Tuned
Joined: Mar 2021
Posts: 370
Likes: 178
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.
This tells me that the holes are tapped through and exposed to the oil.
Tuned
Joined: Mar 2021
Posts: 370
Likes: 178
If you're putting a dual stabilizer to stop death wobble, or bump steer, you've got other issues going on...
Again, only one is needed. If you're alignment is correct and everything is nice and tight you don't even really need one for the street. its just because people lifted their trucks, thought 2 looked cool, and now everyone believes they need a dual stabilizer on a stock truck.
If a dual stabilizer is needed, why not 3? 4? 20?
Again, only one is needed. If you're alignment is correct and everything is nice and tight you don't even really need one for the street. its just because people lifted their trucks, thought 2 looked cool, and now everyone believes they need a dual stabilizer on a stock truck.
If a dual stabilizer is needed, why not 3? 4? 20?
More Turbo
Joined: Jul 2020
Posts: 709
Likes: 188
The other plausible explanation is what you said previously - force against the bracket is breaking the seal. Correct me if I'm wrong, but if this is the case, the only solution is to remove the product? Or find a gasket with more sealing tolerance? Or perhaps an aftermarket differential cover that doesn't flex under load of the stabilizer forces?
Tuned
Joined: Mar 2021
Posts: 370
Likes: 178
Then there's no good in adding Permatex to the bolts and re-fastening. Both times I fastened the bolts I torqued them to 35 ft. lbs, which I believe is recommended, so I don't think the leak is caused by a lack of clamping force.
The other plausible explanation is what you said previously - force against the bracket is breaking the seal. Correct me if I'm wrong, but if this is the case, the only solution is to remove the product? Or find a gasket with more sealing tolerance? Or perhaps an aftermarket differential cover that doesn't flex under load of the stabilizer forces?
The other plausible explanation is what you said previously - force against the bracket is breaking the seal. Correct me if I'm wrong, but if this is the case, the only solution is to remove the product? Or find a gasket with more sealing tolerance? Or perhaps an aftermarket differential cover that doesn't flex under load of the stabilizer forces?
It could even be because the bracket is held off of the cover slightly (because of tolerance differences between each axle housing) so when you're tightening down on the bolt you're really just tightening on the bracket, and not on the cover...
You could do a beefy diff cover and weld a bracket off of that, but I still go back to why...
Read up here on posts about caster, get it to 5 degrees or so, set your toe, and run just one good stabilizer like a fox or bilstien in the factory location. It's all you need. Shoot I'm still running the stock stabilizer at 43k miles and after aligning the truck myself it drives just like a normal vehicle...
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