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Wobble in the rear after 2/4 Belltech?

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Old Jul 26, 2024 | 02:11 PM
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Default Wobble in the rear after 2/4 Belltech?

I installed the Belltech 2/4. Everything got replaced on the rear and front, except the front tie rod ends. Everything is fine of flat level or even some of the ****ty roads. The problem comes in some of ruts on the interstate in my area (so far just that). I got a "death wobble" coming from the rear end. I saw that QA1's could help/completely get rid of that. Does anyone have experience with this issue and use the QA1's to get rid of it? How successful? I saw a torsion bar relocation kit but I would love to avoid that if I can.



I have plans to drag and do some track time if that makes any difference, as well as her being my daily.
 
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Old Jul 26, 2024 | 02:23 PM
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Doing things to the front suspension isn't going to solve a problem coming from the rear.... Assuming the QA1's are coilover shocks..... those may, or may not.... help. First thing I would check is that everything back there is tight, including the lug nuts......
 
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Old Jul 26, 2024 | 05:39 PM
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Originally Posted by HeyYou
Doing things to the front suspension isn't going to solve a problem coming from the rear.... Assuming the QA1's are coilover shocks..... those may, or may not.... help. First thing I would check is that everything back there is tight, including the lug nuts......
She's all tight. Just got done checking.

The QA1's are for the rear.
 
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Old Jul 27, 2024 | 08:59 AM
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How did the kit raise the rear??
 
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Old Jul 27, 2024 | 11:26 AM
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It's the 2/4 lowering kit. Front was a shock lower, with stock coils in, rear was a shock and coil replacement. This kit. Reading around, it looks like the shocks they come with for the rear aren't up to the task and many replace them with better shocks. There is also a torsion bar relocation kit that readjusts the geometry. Shocks are a band aid, though I'll probably do them for now, and relocation is the perma fix. It just requires more work than my body is able to do right now.
 
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Old Jul 27, 2024 | 11:44 AM
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Theoretically, they are "Premium" shocks..... Wonder if the groove in the pavement on the interstate are just hitting some harmonic frequency your suspension doesn't like..... Different shocks *might* address that..... but, not 100% sure on that.
 
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Old Jul 28, 2024 | 12:17 PM
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That's my curiosity as well. I have had issues in past with other vehicles and those groves. I have had issue with a Chevy Beretta and an S-10 before. Not as wide a wheel base on them but I'd always have to ride weird in the lane and stay out of the ruts. I'd get a rocking/wobble motion but not nearly as bad as I was getting in this instance.

Up to 80mph on non rutted roads was perfectly fine. I even took her on a really curvy road and she flew through that with no problems.
 
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Old Aug 2, 2024 | 01:46 PM
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I talked to the QA1 tech and we spent some time looking things over and doing some researching. We couldn't really see why the QA1s wouldn't fit. Even though they are listed as only fitting to 2008. He couldn't give a definite yes, which I totally get, so he gave me the best he could with a maybe. I went ahead and ordered a set. I'll be able to put them on next week if they work. It looks like it all would. The travel listed is within the shock length with the truck lowered, at 21" with weight on wheels, and the mounting looks the same. I'll update everyone, on the 3 Ram boards I'm on, with the results. I am getting info from Viking Performance as well to see if they have a setup that will work. He wants the bolt measurements for the mount bolts, top and bottom. He has them as a 14mm bolt that is 1-5/8ths wide if anyone know that off the top of their head. If not I'll measure when I pull the shocks next weekend.

He said if they're what he thinks they are then we have an option from them as well. I asked specifically for a set that had adjustable ride firmness too.

His suggestion, if the bolt is right, is their D216-X shock with the 7935-130 cross tube kits on the mounts.
 
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