3rd Gen Engine and Drivetrain -> 2003-2007 5.9 liter Engine and drivetrain discussion only. PLEASE, NO HIGH PERFORMANCE DISCUSSION!

Wanna see death wobble?

Old Mar 27, 2007 | 06:03 PM
  #46  
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From: Alta Loma, CA
Originally Posted by OldSmokey
Ahh thanks ptgarcia. I want a to end up with 5 inches of lift. So are the Thuren bars adjustable up to 5 inches of lift? I may have some adjustable control arms, and I think Bilstein 5100's should work.
I'm not sure on Don's bar, but if you let him know how tall you're going I'm sure he'll make sure it is long enough.

The Bilsteins will be a great improvement over stock. With 5" of lift, if you don't already have adjustable arms you should really go to a long arm setup, or ditch the control arms all together for a set of radius arms. When I spoke to Don today, he said his radius arms are going to be about 52" long. The stock lower control arm is only around 20" long!
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Old Mar 27, 2007 | 06:18 PM
  #47  
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From: Sturgis SD
My shocks now are tough country 9000 and they are terrible. What is so much better about radius arms?
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Old Mar 27, 2007 | 07:31 PM
  #48  
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From: Alta Loma, CA
Originally Posted by OldSmokey
My shocks now are tough country 9000 and they are terrible. What is so much better about radius arms?
The stock control arms are really short, and even on a stock truck they aren't parallel with the ground, rather they angle down, pointing at the ground out in front of the truck. As the axle moves it swings in an arc. But because of its starting position, it actually has to move forward as it moves up. So you have 7000lbs of truck trying to move the axle forward and the bump in the road trying to push it back. This causes lots of deflection in the soft rubber bushings in the factory arms, leading to changes in the alignment of everything up front as the suspension cycles. Don and I were talking about this today, and he said you can get several degrees change in castor as the suspension moves through its range of motion. Thats more than enough to alter your coarse, causing the truck to wander. Don's new arms will have superior poluyurethane bushings at the axle, a huge spherical (or something similar) joint at the frame connection, and a much longer radius of travel. So now you have almost zero deflection and the axle won't have to travel forward. This will make for a better handling, better riding truck.
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Old Mar 27, 2007 | 08:07 PM
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Thanks a bunch Pauly. That helps me understand this stuff much better.
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Old Mar 27, 2007 | 09:06 PM
  #50  
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If you decide to go long arm, spring for the radius arm set-up. A long lower and short upper will create HUGE amounts of bind if you plan on twisting up your truck. Heres my custom radius arm set-up on my TJ.
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Old Mar 27, 2007 | 11:03 PM
  #51  
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From: cypress/houston, tx
I went under my truck and gave everything realted to the steering/front end a tug and nothing seem to move except miniscule play in the pitman arm/steering box, is this normal?

Also my steering wheel is slightly off center to the left when driving straight down the road. What is the best way to correct this. Does this mean worn or bad parts?? Truck has 4000 miles on it.
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Old Mar 28, 2007 | 07:29 AM
  #52  
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Originally Posted by wreedz71
I went under my truck and gave everything realted to the steering/front end a tug and nothing seem to move except miniscule play in the pitman arm/steering box, is this normal?

Also my steering wheel is slightly off center to the left when driving straight down the road. What is the best way to correct this. Does this mean worn or bad parts?? Truck has 4000 miles on it.

The drag link adjuster will correct this. Drag link is the rod that attaches to the right knuckle and goes to the pitman arm. You can adjust steering wheel center without messing up any other alignment angles.
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Old Mar 28, 2007 | 10:33 AM
  #53  
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From: cypress/houston, tx
Hey guys in inspecting my front end i saw the where the track bar connects on the drivers side looks differnt from the passengers side. see pictures, does this look bad?
Attached Thumbnails Wanna see death wobble?-image_00026.jpg  
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Old Mar 28, 2007 | 10:34 AM
  #54  
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From: cypress/houston, tx
Originally Posted by chromegrill
The drag link adjuster will correct this. Drag link is the rod that attaches to the right knuckle and goes to the pitman arm. You can adjust steering wheel center without messing up any other alignment angles.
What about the little play in the steering box/pitman arm, this is normal correct?
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Old Mar 28, 2007 | 10:47 AM
  #55  
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From: Alta Loma, CA
Originally Posted by wreedz71
What about the little play in the steering box/pitman arm, this is normal correct?
Yeah, a little play there is normal.

The picture above is blurry and I can't tell what I'm looking at.
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Old Mar 28, 2007 | 10:57 AM
  #56  
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Originally Posted by chromegrill
Out of balance tires that cause death wobble can be cured with proper caster angle. There should be NO reason that a tire with no weights should cause an issue.
I agree with you on the "should" thing, but unfortunately a Dodge with caster anywhere from 3-7deg can still get DW fairly easy with the right conditions and tight parts..

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Old Mar 28, 2007 | 11:53 AM
  #57  
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From: S.E., Michigan
Originally Posted by bigdav160
Keep laughing.
My .03 had severe death wobbles with BFG's. Just any good size bump would set it off.

New tires and not one episode since (almost two years now). Same roads.

Tires seem to have fixed mine.


Ive never ran any tire BUT the BFG A/T KM 285x75x16's.
Never had DW yet...

In my old 1500 360v8 Ram, I used to get it ALOT but it was lifted about 8" suspension wise.

My .02 is ball joints, wheel bearings, trac-bar and Alignment.
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Old Mar 28, 2007 | 12:30 PM
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Originally Posted by THURENfab.
I agree with you on the "should" thing, but unfortunately a Dodge with caster anywhere from 3-7deg can still get DW fairly easy with the right conditions and tight parts..

Thats exactly what I'm talking about, max that caster out on a stock truck with tight parts and you will never have a problem. Dodge has such a loose tolerance on their alignments, I'm suprised they drive at all once they roll off the line...
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Old Mar 28, 2007 | 01:32 PM
  #59  
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From: cypress/houston, tx
Originally Posted by ptgarcia
Yeah, a little play there is normal.

The picture above is blurry and I can't tell what I'm looking at.
I believe it is where the trac bar connects on the driver side. if yall still cant tell i will take a better picture when i get home.
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Old Mar 28, 2007 | 02:53 PM
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Originally Posted by wreedz71
I believe it is where the trac bar connects on the driver side. if yall still cant tell i will take a better picture when i get home.

Thats the left side sway bar link, looks normal to me, just a little twisted, but its a ball and socket design, so it's allowed to twist.
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