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Old 02-13-2014, 09:11 AM   #1
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2500HD 4WD question

Hey Folks,

This is my first post, always been a stalker but I could use some specific answers and opinions for my 2006 I just purchased. I'm planning on putting on Toyo 285/70/17 A/T2 tires and don't know if I should go with the 2" leveling kit or would putting on Bilstein 5125 shocks be enough to lift it and look good.
From previous threads I learned that the 4wd HD is prone to Death Wobble if you go over 2" lift in the front. Is it possible to lift the required 2" inches with the shock alone? I believe the front leveling kit on this year and model requires new front springs. Not sure.

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Old 02-13-2014, 10:51 AM   #2
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You could do front springs or front spacers (metal preferred) not sure on the shocks and there lift ability shocks themselves don't hold weight the control spring oscillation unless these are some kind of special shock
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Old 02-13-2014, 11:46 AM   #3
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Ok, I thought those shocks were specifically designed to level a truck without a lift kit. I remember the old air shocks from the muscle car days would lift the rear a lot. Thanks for the reply.
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Old 02-13-2014, 12:50 PM   #4
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Old 02-13-2014, 09:35 PM   #5
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Old 02-13-2014, 09:50 PM   #6
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Old 02-14-2014, 06:27 AM   #7
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Welcome Aboard! We're glad to have you apart of the FL Chapter. I looked up those particular shocks and it reads as follows." The 5125 Series offers BILSTEIN technology for custom lifted applications. " You can order them in custom lengths to fit your application. So I'd say they would probably work great with a 2" leveling kit. I've heard good things about Bilstein.
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Old 02-14-2014, 08:09 PM   #8
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Old 02-15-2014, 05:06 AM   #9
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The notion of death wobble (severe bumpsteer ) with a leveling kit comes from the positive caster angles that the level kit creates. ( think bad wheel on a shoppinh cart ).

Your frontxle caster needs to be 4-6degrees negative ( leaning towards the rear ).

You measure this with a degree finder resting on the upper balljoint cap.

When a level kit is installed with out a longer lower control arm ( adjustable arms would be best), it pushes the axle down from thenframe amd the geometry of the short arms try to twist the front axle, thus creating less than ideal caster angles.


it will also move the axle towards the driver side due to a static track bar length.


all in all though, most cases of death wobble are related to bad track bar bushings, as the t bar is what controls the sided to side movement that creates death wobble ( severe bumpsteer).

Check out Thuren Fab . Com, there are some good videos of what is going on with bump steer.
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Old 02-15-2014, 08:21 AM   #10
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