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Death wobble

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Old Jul 5, 2020 | 09:13 PM
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Default Death wobble

I can not figure it out I need help. It didn't have dw t about 2 months ago not to bad but enough to make you pick your self. I figured it was ball joint I didn't get around to it for a little bit when I was able to I put on a 2.5 inch puck to level it out it now has 9 inches of suspension and did my ball joints. Got that done drive it dw was worse then I got a track bar with the drop bracket axle is still of center a little broke it and the dw is even worse please help.
 
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Old Jul 5, 2020 | 09:17 PM
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If you have 9" of suspension lift your axle is "rolled" back quite a bit and the caster is way off, unless you have longer/adjustable control arms. What is the tire size ?
 

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Old Jul 5, 2020 | 09:19 PM
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Originally Posted by DerTruck
Nevermind.... just saw it ... stay tuned.
39.5x13.5r17 for tires 9 inch suspension 3 inch body
 
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Old Jul 5, 2020 | 09:33 PM
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Originally Posted by DerTruck
If you have 9" of suspension lift your axle is "rolled" back quite a bit and the caster is way off, unless you have longer/adjustable control arms. What is the tire size ?
it still has the stock control arms I'll be putting on long arms this weekend. Is the axle being pulled back a cause of dw. 39.5x13.5
 
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Old Jul 5, 2020 | 09:42 PM
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Originally Posted by 12dodge
39.5x13.5r17 for tires 9 inch suspension 3 inch body
Sorry our posts have crossed. Anywho what did you do for control arms with that setup ? Drop brackets ? Adjustable lowers ? Make sure you have enough caster, caster takes precedence over driveline angles. Typically caster is reduced with a lift, and to some extent that is compensated for by larger tires but it requires fine tuning. Do not set the caster to stock spec because the larger tires result in much more "trail" (the distance between the line the knuckle turns around and the tire contact patch). You may need to experiment a little but the caster angle should be smaller than stock which in conjunction with the larger tires should come out to about the same "trail".
Another possible cause is if the axle is not centered perfectly left to right, and/or the track bar angle is too step which causes the axle to move sideway a lot when it goes through the travel.
 
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Old Jul 5, 2020 | 09:52 PM
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Originally Posted by DerTruck
Sorry our posts have crossed. Anywho what did you do for control arms with that setup ? Drop brackets ? Adjustable lowers ? Make sure you have enough caster, caster takes precedence over driveline angles. Typically caster is reduced with a lift, and to some extent that is compensated for by larger tires but it requires fine tuning. Do not set the caster to stock spec because the larger tires result in much more "trail" (the distance between the line the knuckle turns around and the tire contact patch). You may need to experiment a little but the caster angle should be smaller than stock which in conjunction with the larger tires should come out to about the same "trail".
Another possible cause is if the axle is not centered perfectly left to right, and/or the track bar angle is too step which causes the axle to move sideway a lot when it goes through the travel.
I got the DIY radius long arms. The axle sits approximately 2 inches further to the driver side the track bar needs to be adjusted to center that. I'm 16 thank you for your help still learning
 
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Old Jul 5, 2020 | 10:08 PM
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Originally Posted by 12dodge
I got the DIY radius long arms. The axle sits approximately 2 inches further to the driver side the track bar needs to be adjusted to center that. I'm 16 thank you for your help still learning
Radius arms are junk. I won't even install them in my shop. As others have mentioned get the axle center and moved forward
 
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Old Jul 5, 2020 | 10:13 PM
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Originally Posted by MoparFanatic21
Radius arms are junk. I won't even install them in my shop. As others have mentioned get the axle center and moved forward
Its what I could afford they were $600 with shipping I don't have a huge budget am only 16
 
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Old Jul 5, 2020 | 10:18 PM
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Originally Posted by 12dodge
Its what I could afford they were $600 with shipping I don't have a huge budget am only 16
Oh I understand that I'm just giving you a heads up. I'd your truck a 1500?
 
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Old Jul 5, 2020 | 10:21 PM
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Originally Posted by MoparFanatic21
Oh I understand that I'm just giving you a heads up. I'd your truck a 1500?
yes with the 5.9
 
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