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Speed Shake in front end

Old Oct 4, 2011 | 09:25 AM
  #1  
Oilman73's Avatar
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Smile Speed Shake in front end

I tried searching in other posts before posting here but I didn't find.

I have a new 2011 Ram 3500 4 x 4 Mega Dsl auto with NO mods or upgrades. The truck has 22,000km (12,500miles) the problem started around 19,000k.

At 80 - 120 km/h (50 -75mph) after hitting a small bump or dip the truck goes into a violent shake or wobble.

The only way to recover is to slow down to 50k/h (30m/h) or to agressivly steer into the shake. There is also uneven wear on both front tires its not really just inside or outside but all over.

The dealership said there was nothing wrong so I video taped the shake while driving, that convinced them to change the steering stabilizer, I don't think they took it for a test drive cause it didn't help.
I asked for a wheel alignment where nothing was found to be out of spec, they did adjust a litle camber, I requested the numbers so I have before and after data. Of course I also balanced the tires and rotated the front to the back.

The truck is worse when the front end is lighter when towing but even a light 4500lb trailer is all it takes to make it worse, another story again with 5th wheel.

Otherwise the tuck is great not as good mileage an my 03 but I guess thats already the topic of alot of conversation
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Old Oct 4, 2011 | 09:39 AM
  #2  
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Do a search here for death wobble
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Old Oct 8, 2011 | 12:14 AM
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From what I have experienced. Death wobble occurs most often when there are bad front tires (uneven wear or out of balance) even though those same tires would be fine on any other truck. I would rotate the tires.
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Old Oct 8, 2011 | 08:43 AM
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Yep..Death Wobble!

4x4 2500 and 3500 models are well known for this.

Expect 'zero' help from the dealer. Dodge knows the problem exists. They will give multiple excuses for what you are experiencing...all of which will not solve the problem. It is not your tires, wheels, shocks, steering damper, ect...your front axle 'wobbles' or shakes violently side to side once set in motion from bumps in the road at speeds usually over 50. This movment transfers energy to the frame and radiates up the steering column...hang on! In my case I learned from repetition that the drivers side front wheel usually starts this action from hitting bumps first.

As you mentioned in your post, towing seems to add to the action. Less weight on the front axle and more on the back axle will set this off quicker.

In order for me to address this and get rid of it once and for all required aftermarket parts. Steering box stabilizer bracket and a new stronger and adjustable track bar. Once installed you will have to get a new alignment. Death Wobble is gone. Problem is these items will give the dealer an escape route for future issues if you are still under warranty, but you will have fixed the problem.

Do a search for 'BD Power'...they have addressed this and can help you.

Also search Death Wobble Dodge Ram on YouTube...lots of video showing this shake.
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Old Oct 8, 2011 | 02:33 PM
  #5  
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From: misplaced Idahoan stuck in Albuquerque, Roughneckin on RIG 270
Originally Posted by XLR8
Yep..Death Wobble!

4x4 2500 and 3500 models are well known for this.

Expect 'zero' help from the dealer. Dodge knows the problem exists. They will give multiple excuses for what you are experiencing...all of which will not solve the problem. It is not your tires, wheels, shocks, steering damper, ect...your front axle 'wobbles' or shakes violently side to side once set in motion from bumps in the road at speeds usually over 50. This movment transfers energy to the frame and radiates up the steering column...hang on! In my case I learned from repetition that the drivers side front wheel usually starts this action from hitting bumps first.

As you mentioned in your post, towing seems to add to the action. Less weight on the front axle and more on the back axle will set this off quicker.

In order for me to address this and get rid of it once and for all required aftermarket parts. Steering box stabilizer bracket and a new stronger and adjustable track bar. Once installed you will have to get a new alignment. Death Wobble is gone. Problem is these items will give the dealer an escape route for future issues if you are still under warranty, but you will have fixed the problem.

Do a search for 'BD Power'...they have addressed this and can help you.

Also search Death Wobble Dodge Ram on YouTube...lots of video showing this shake.

might wanna re-check your thoughts on causes. too soft of sidewall on tires with a 1000lb motor alone can cause DW. Worn ball joints and or tie rod ends can cause DW, track bar not torqued properly can cause DW (have seen the track bar mount itself worn out (the thru bolt holes elongated) and cause DW), worn out steering stablizer can cause DW.

Just make sure you inspect ALL possiblities before jumping out and spending money on a steering brace (I for one and pro-steering brace so don't take me wrong on this) and a track bar when your ball joints could be the cause.
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Old Oct 8, 2011 | 04:59 PM
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Originally Posted by cbrahs
might wanna re-check your thoughts on causes. too soft of sidewall on tires with a 1000lb motor alone can cause DW. Worn ball joints and or tie rod ends can cause DW, track bar not torqued properly can cause DW (have seen the track bar mount itself worn out (the thru bolt holes elongated) and cause DW), worn out steering stablizer can cause DW.

Just make sure you inspect ALL possiblities before jumping out and spending money on a steering brace (I for one and pro-steering brace so don't take me wrong on this) and a track bar when your ball joints could be the cause.
All true if one had mileage wear on these components that you refer to...but certainly not with a 2011 vehicle with only 12,500 miles as the original post explains.

I agree with your comments about component wear and tire pressure. These all will contribute to and accelerate the DW. Continued DW will result in significant premature wear to the front end components..ie tie rod ends, ball joints and oem track bar mount points ect. In addition to these parts, with continued DW expect to have to replace your power steering pump and eventually the steering gear box as it will fail due to the violence this DW causes repeatedly over time.

As I mentioned, don't expect the dealer to fix this under warranty.
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Old Oct 11, 2011 | 12:08 AM
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Finally fixed.
Just info for future people with problems like I said in my first post the truck is completly stock even the tires. I wont do any mods until warranty is over just for these types of problems.

I always keep the tires higher in pressure not max but 2/3 - 3/4 of max press.

1 Visit one the shop said nothing was wrong.
2 Visit two I brought a video while driving, so they did a wheel alignment and changed the steering stabilizer and I paid for a balance and rotate. Alignment was in spec but they adjusted a little toe.
3 Visit three again with a new video I suggested that maybe it was a castor wobble and needed some more castor adjustment even though it was in spec. The did an alignment and adjusted the castor but the truck wobbled for the tech again finally the found that the bushings in the trac bar had play new bar truck is good. Happy Ending.

Thanks everyone for your posts hope this info helps the next truck.
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Old Oct 13, 2011 | 06:04 PM
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I have heard on these boards that brand of tires have alot to do with it.
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Old Nov 3, 2011 | 10:03 PM
  #9  
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Maybe next time the dealership that checked your truck will run your vin for any Recalls that may apply.
It is very important to set both tie rods at the same angle using special tool. Read the Recall notice.
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