Death wobble at 100+

[Lhemi]

Your kidding right? So as long as I've got this drop on my truck it's going to wobble? That's FU__ED!!!
Why doesn't anyone ever post stuff like that? Dude I spent $500 to drop it and another $200 on a adjustable pan hard bar so I can't drive my truck fast any more! That's FU__ED up!!!

 

[bouf0010]

Your kidding right? So as long as I've got this drop on my truck it's going to wobble? That's FU__ED!!!
Why doesn't anyone ever post stuff like that? Dude I spent $500 to drop it and another $200 on a adjustable pan hard bar so I can't drive my truck fast any more! That's FU__ED up!!!

while you're at it you might want to take a look at the alignment of the wheel in the wheel well from a front to back perspective, youll most likely need adjustable control arms too.

these image are borrowed from the spohn website





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[charonblk07]

Lol, I know that truck! We were both talking to Spohn when he originally got that done, saved me having to do the measurements.

As for the rear-end 'waggle' the alignment is very key. At speed, a very minor angle in the line of thrust can cause issues, that's where the full set of adjustable bars comes in handy, you can dial it in perfectly for the ride height. Also, find out what your front caster angle is, if they set it back to factory spec you're now actually sitting more positive relative to the factory spec which can cause issues at higher speeds. For high speed driving a negative caster is better than a zero caster angle.

 

[BlkRamRt]

Your kidding right? So as long as I've got this drop on my truck it's going to wobble? That's FU__ED!!!
Why doesn't anyone ever post stuff like that? Dude I spent $500 to drop it and another $200 on a adjustable pan hard bar so I can't drive my truck fast any more! That's FU__ED up!!!

i mostly feel it when there is a small curve on the road and im doing like 80-90. thats one of the reasons why i want to finish my suspension. better shocks new swaybars ect.

 

[Exhausted]

I just thought of this, no one here is talking about pinion angle, I would bet that has a lot to do with vibration too
The adjustable upper and lower control arms will fix that

 

[BlkRamRt]

I just thought of this, no one here is talking about pinion angle, I would bet that has a lot to do with vibration too
The adjustable upper and lower control arms will fix that

very true.

 

[Exhausted]

Yeah anytime I have ever lower a truck it was with leaf springs and the provided a shim for the pinion angle (before my 2012 Ram and this truck)
Anytime I have lowered a 4th gen f-body we had an adjustable torque arm to set the pinion angle to -1*

 

[Lhemi]

Sweet. I priced all that stuff last night, I just dumped $700 and now I've got to dump another $800 to get my truck back to where it was before the drop.
$1,500 to stop wheel spin is a little excessive. This kits should come with a warning.
(Warning if installed you could possible trash your trucks drivability, causing you to spend tons of money to fix what wasn't broke. High probability your wife is going to nut the f__K out when she finds out your ********.)

 

[bouf0010]

Sweet. I priced all that stuff last night, I just dumped $700 and now I've got to dump another $800 to get my truck back to where it was before the drop.
$1,500 to stop wheel spin is a little excessive. This kits should come with a warning.
(Warning if installed you could possible trash your trucks drivability, causing you to spend tons of money to fix what wasn't broke. High probability your wife is going to nut the f__K out when she finds out your ********.)

wouldn't it increase wheel spin due to reducing the ability for the truck to squat at launch?

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[Lhemi]

Mine moved my center of gravity back over the rear axle, before where my truck would just smoke the tires, now there is very little wheel spin, and my truck pulls hard. I love the added performance, this whole wobble thing has me a little messed up.
Hopefully the APB fixes this issue and I can go back to driving my truck like I stole it.
Again I would like to thank everyone for you useful information, helping this newbie in his trucks transformation.

 

[petesnchz]

So how many people with a lowered truck has the wobble? I was really wanting to do this soon but if it's going to cost $1500 dollars for it not to wobble I might just leave mine stock for a while. I thought the relocation bracket was to fix that issue.


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[charonblk07]

Can't say I have it, but I'm a 4/6 lowered 4wd.

 

[Lhemi]

From what I've heard it's just the R/T's with the issue. Mines bad enough... Well it just sucks.
I'm hoping the adjustable pan hard bar fixes it.

 

[wickedwhite2012]

I have a single cab express with the 2/4 drop and it does the same thing. I was on my way to work one morning and some guy on the interstate wanted play. So I punched it. At about 110 it felt like the rear end was going to sling shot pass me. Its a nice way to wake you up at 6 am in the morning. I will watch this post. I want the know the fix for this problem.

 

[jcs64]

cant remember who it was that had the thread going for a while about this but I thought that after several pics were posted, we figured out that the relocator bracket for the stock panhard bar was not relocating the angle enough to mimic the stock angle.

This is not the first time there have been complaints about the bell tech kit.
As mentioned in that other thread, the mcgaughys kit seems to locate the panhard bar at almost the stock angle, and after running mine for ~1200 miles there is nothing exciting to report, everything feels fine.
(got to admit though, the thought of 100mph+ on the street would never cross my mind)


I really hope you can get this straightened out w/ out all the extra adjustable bars and extra $.


jeff

 

[Lhemi]

Lance,

After looking into this for you I see that we don’t actually list this kit to be applicable for the Ram RT as we do for the rest of the models. I would suggest using the adjustable relocation bracket that you purchased to see if this helps your issue. I would also suggest checking the rear control arm bushings because if they have been worn overtime this issue can occur. I spoke with our R&D department and they have not been able to replicate the issue you are referring to. On the trucks that have been tested here in house and had these kits installed on them there have not been any rear end issues. Unfortunately due to this we do not have any plans to create a different bracket or alter our kit as the issue cannot be replicated here.

If you have anymore questions please let me know.


Chad Gordon
Technical Advisor


KW automotive North America, Inc.
1075 North Avenue
******, CA 93657 USA
Tel: +1 559.875.0222 ext. 116
Fax: +1 559.876.2259
Email: [email protected]
Web: KW automotive North America, Inc. /// Be successful with KW suspension - made for Winners!

 

[petesnchz]

Wow, that sucks. So does anyone with a Mcgaughys kit have this issue?


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[Shoes09]

I have a 09 CC Sport with the Mcgaughys economy kit and have the wobble also. I tried using the Bell Tech lowered shocks(silver) on the rear but the problem got worse. Was told the belltech shocks aren't as good as the factory ones. I replaced the rears with Billstein 4600's and still having wobble.

I am thinking about replacing the factory front shocks with 4600's but not sure it will help.

I've been running the drop since 2010.

 

[Lhemi]

I put the adjustable bar on and it fixed mine

 

[ericlee9386]

I put the adjustable bar on and it fixed mine

Same for me. I hit 125 and it rode nice and smooth