We have a Big Horn 3670 (approx. 40 ft) and need to add an automatic leveling system. Is there somewhere we can research if the 4 or 6 point leveling system is better for our rig? Are there technical specs that will show us if 4 point is sufficient or if we need to go to 6 point? And what has been the experience of other owners of rigs this size? What has been the experience of others in having this added post-purchase?
Curious as to your thinking.
4 point is "2" additional jacks behind the rear tires and the 2 landing gear assemblies.
6 point is 4 additional jacks, 2 behind and 2 in front of the axles and the 2 landing gear assemblies.
Just me personally, but I would not consider using 4 points. That puts a tremendous load on the frame. And the rear electric stabilizer jacks are not designed to do any lifting.
With respect to the Lippert auto-leveling systems, they originally put 4 point (plus stabilizers) on large coaches. Our 39' Rushmore has them. Lots of us have them and they work fine. Then one day they came out with the 6 point system. After the 6 point became available, I believe they kept the 4 point system in the marketplace but positioned it as the choice for shorter/lighter coaches.
6 point was out first and the original design.
I'm pretty sure the 4 point version was a cost measure.
And, it was correctly predicted by the lead Lippert installer that the 4 point would be superseded with the 6 point within a few months of the introduction.
And for those with the initial factory offered 4 point, Lippert has an upgrade available.
