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Old 07-18-2015, 10:06 PM   #29
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I would not be so certain those boxed frames are actually stronger than the 12 I- beam. I would bet the boxes are much thinner steel meaning they are subject to degradation much faster as rust will eat through much sooner.
Talk to anyone that knows steel. The DRV 15" tall triple boxed frame is far stronger than a 12" "I" beam by far.
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Old 07-21-2015, 10:36 AM   #30
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Didn't all the pickup manufacturers swap to boxed frames for a specific reason? Cosmetics, maybe? Hmmmm, that doesn't sound right... Gotta be something else. ; )


2015 Ram 3500 Laramie Longhorn CC LB Dually. Cummins, Aisin, 4X4, 4.10 gears. Max towing-28,750. Max payload-5,436. 2016 DRV Mobile Suites 41RSSB4 on order.
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Old 07-21-2015, 02:33 PM   #31
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There are several ways to design structures for strength and durability. I have design several different structures over my career as an engineer. What really matters in the design process of this structure is that the engineer must understand the loading that the structure will see and the requirements of this structure must withstand. Such as twisting, bending and side loading of the material that the structure is supporting. A single plate of steel is sometimes stronger than a box section and where as a C-section/I beam frame may work just as will. This all depends on the loading and the intended usage of the structure and life targets.


One of the greatest tools in design nowadays is finite analysis (FEA) and CAD programs that allow the designer to experiment on paper before releasing the design to production and manufacturing.


So to say one design is weaker than another without knowing the design parameters and testing that was involved; is like putting one's head in the sand and saying the sky is falling.


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Old 07-22-2015, 07:01 PM   #32
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Didn't all the pickup manufacturers swap to boxed frames for a specific reason? Cosmetics, maybe? Hmmmm, that doesn't sound right... Gotta be something else. ; )


2015 Ram 3500 Laramie Longhorn CC LB Dually. Cummins, Aisin, 4X4, 4.10 gears. Max towing-28,750. Max payload-5,436. 2016 DRV Mobile Suites 41RSSB4 on order.
Nope, Ford SD's still have the old school frame. I am sure they will come to this Century when they come out with a new truck.
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