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  1. GR8ADV

    Frame flex fundamental question

    W Ok I am almost getting smarter. The concept is very sound. I am having trouble of how it functions in the real world. In the pic below which is pretty typical and is the same in the side of the ATW These are not shown on the sketch in the link I don't believe. My headache is that...
  2. GR8ADV

    Frame flex fundamental question

    I don't understand how with this design. I am not questioning, I just have questions. Please explain how this minimal gap does that. Thanks.
  3. GR8ADV

    Frame flex fundamental question

    Yes I have seen these and this is similar to what is in the alpha. I do not understand how his isolates the box. Can you explain?
  4. GR8ADV

    Frame flex fundamental question

    I spent two days done at ATW and did not pay attention to that. Can someone explain how it works. I did see one of the spring mounts. How many more are there and how is the frame isolated. Thanks.
  5. GR8ADV

    2015 Sprinter 4x4 build begins

    And this use to be a great thread...
  6. GR8ADV

    Is This Van Stealthy Enough to Stealth Camp With?

    I have to agree. What is the definition of a home beyond ones place of residence. But maybe the title would be better stated, is this stealthy enough to call home.
  7. GR8ADV

    2015 Sprinter 4x4 build begins

    Alan shared that they are required to contact MB for ANY modification they do to the Sprinters, from drilling a hole to putting in a window. The contractual or otherwise necessity of this is beyond my pay scale. Alan is one of the most straight fwd people I have dealt with. Called every spade...
  8. GR8ADV

    Frame flex fundamental question

    Nothing ruins a good thread than getting too technical; but what the hell. Are we confusing the twisting load/moment ( ft lbs) and the composite polar moment of inertia of the members that make up the frame? The twisting moment is a function of the load x the distance. The polar moment of...
  9. GR8ADV

    Frame flex fundamental question

    Excellent point. This is the "dynamic " factor and these horizontal forces cause torsion. The same theory applies. The swaying or sloshing back and forth creates horizontal forces resulting in torsion to the frame. The forces are proportional to the height of the center of mass above the...
  10. GR8ADV

    Frame flex fundamental question

    As a point of reference. I have a fiberglass Unicel box. It has metal studs on 24 inch centers that go up the sides and hoop around the top of the box. Quite possibly they hoop around the bottom as well but I do not know this. The box is mounted per FUSO on beams u-bolted to the frame with wood...
  11. GR8ADV

    Frame flex fundamental question

    Why can'tI have this on my FUSO. ������ lets not get too far afield from frame mounting isolation to traction and lockers et al. For what it is worth I expect that in the pic the front tires are doing little or nothing to aid at this moment as you can...
  12. GR8ADV

    Frame flex fundamental question

    Do people actually not think of the whole truck as a system? Imagine, if you will , that you are on a steep side slope, sloping down to the right. As you drive to level ground, if there is no frame flex the left wheel would remain in the air. If you have lots of articulation the spring will...
  13. GR8ADV

    Frame flex fundamental question

    All things remaining equal, yes the longer Frame will have less resistance to torsion and will result in a greater angle of twist. It does NOT mean that the torsional forces are less. The frame still needs to resist the forces. . In simple terms the frame must resist the torsion caused by the...
  14. GR8ADV

    Frame flex fundamental question

    I suspect this is a suspension issue and not a mounting issue, but not having any of the facts I really don't know. , FWIW I believe the FUSO builders guide says mount the box to the frame via u bolts with a wood interface. , Obviously complete isolation from the frame would be awesome to...
  15. GR8ADV

    Fridge size?

    Once we added a freezer to the mix it changed everything. We went from a few days away to more than a week away without shopping. Just a thought.
  16. GR8ADV

    EC vs. ATW for add-on leaf springs/shocks

    and this is important. I am not sure I have heard a bad report on the EC suspension. No word yet on the bolt on version. . Although I have no doubt that both ATW and the 'real' EC suspension are both excellent, I am not sure that either will work as well with the others wheel set up as they...
  17. GR8ADV

    EC vs. ATW for add-on leaf springs/shocks

    Oops forgot a piece of info. The ATW setup raised the height about 1 inch after install. This may change after a few thousand miles. However I changed from s non stock setup. Your results will definetly vary.
  18. GR8ADV

    EC vs. ATW for add-on leaf springs/shocks

    I went with ATW. Why? First off I do no want to be part of any company bashing yada yada. I have my reasons and I will share them below. You may agree with them or not. They are my reasons. Please decide for yourself. , I have ATW 19.5 wheels, thus it is a full tested 'system' Customer...
  19. GR8ADV

    "What handheld GPS devices do that smart phones cannot"

    I am in the middle of that now. Always been a GPS guy but things changed on the last Moto trip doing the AZ and UT bdr's. Montana screen cracked for no reason. One touch it was working next touch not. For those who don't know this not all that uncommon and when t happened the Montana becomes...
  20. GR8ADV

    Impressed

    I have spent the last couple of days at Sportsmobile West getting some suspension done in my FUSO. It has afforded me a bunch of time to check things out. Quite an amazing company. Great people, extreamly helpful, very knowledgeable staff across the board. I have been so many places where...
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