Stupid Suspension Questions..... - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 2 (permalink) Old 04-04-2008, 04:29 AM Thread Starter
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Stupid Suspension Questions.....

Allright....in this pic....................

What are the bars up front for? Are they '''front ladder bars?''' What are they and what are they for???

And what are the ladder bars in the rear? I see 2 bars going from the axle to the frame....is this a better setup?

Come on you suspension guru's....fill a brutha in here........



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post #2 of 2 (permalink) Old 04-04-2008, 06:58 PM
BJS
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the front is control arms which is what dodge runs on their 4wd trucks in the front. They are longer to keep factory ride characteristics with the lift kit.

Rear the bars are a custom fabricated traction bar setup. This setup is going to severely limit rear axle articulation however will be acceptable for a road truck. This is very difficult get a practical setup because you have two bars with a fixed point (frame) that must rotate at the same radius (axle) to allow full articulation. They are generally not perfectly matched not to mention that retaining the rear leaf springs is not going to allow the axle to move forward and back on a rotational basis except what is permitted by the shackle which generally pushes the axle back when suspension is compressed and forward for droop. The traction bars are going to want to go forward in droop and compression.

Essentially they attempted to do a 4link suspension with leaf springs which defeats the entire purpose. Swap the rear to coils and you'll essentially have the same suspension as the front of the truck has.

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