Here is a doozie, what do you suspension guys think?

[benno440]

Hey guys, need a little help here diagnosing a problem with my rear end.
I have an unequeal length 4 link in my charger with viking double adjustable coilovers
boze alloys and 295 tires
the car drives fine doesnt crab walk etc. but when i am up around 60mph and hit a bump the rear end wobbles, sort of like speed wobbles on a skateboard.
i stiffened the rear springs, and it went away a little bit but now so stiff for normal driving.

I am 99% sure the rear end is square, before i set the correct pinion angle properly it did nto do this.

any suggestions?

 

[Meep-Meep]

As in the actual axle wobble or the body itself wobbles side to side? Just to throw it out there how are the shocks set up? Typically you want more rebound damping since the spring itself is part of the compression damping.

 

[Hemi Rebel]

Do you have a rear sway bar? Sounds like you need one, or a thicker one

 

[benno440]

body wobble, no sway bar, how hard to add a swaybar? just weld on brackets etc.?
cant remember exact setting on the shocks but the rebound is 2 clicks stiffer than the compression

 

[Herr_Poopschitz]

Triangulated 4 link? What controls lateral movement?

Edit:
Missed where you said 'body wobble'. Sway bar should help. Easy to install, google for ideas.

 

[benno440]

panhard bar bolts from passenger lower link bar to driver side lower link at the diff.

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i dont think its a triangulated, it is a unequal 4 link, 2 lower control rods parallel to each other then 2 uppers parallel to each other but are shorter, with a panhard bar which mounts diagonally

 

[Herr_Poopschitz]

panhard bar bolts from passenger lower link bar to driver side lower link at the diff.

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i dont think its a triangulated, it is a unequal 4 link, 2 lower control rods parallel to each other then 2 uppers parallel to each other but are shorter, with a panhard bar which mounts diagonally

Was just making sure. A triangulated uses upper arms that are not parallel to the frame \ / <--like this, to center the axle, and doesn't req a locator.

Is the panhard parallel to axle at ride height? You mention 'diagonally'...

 

[benno440]

panhard is parallel to axle at ride height yes

 

[wedge69]

Are you shocks mounted stright up and down ? Or do you have them mounted at an angle out towards the side's ??
A pic of your set up would help alot !

 

[Cranky]

How much suspension travel does it have? Down side to a panhard bar is that it can get things in motion to make the car go back and forth because of it's arc of travel if the suspension has a good deal of travel. A Nascar style sway bar is always a better setup....

 

[benno440]

shocks mounted at 30* angle, about 4 inches of travel but really stiff at the moment