While these jacks have a 6"x6" surface area for contact, jack pads are still larger and thicker for soft or uneven surfaces and may still be needed.
by Camping World – June 04, 2015
How many and where to place the stabilizer is customer choice. Suggestion is to walk around in your RV, record where the unit seems to sway/dip/rock and put a stabilizer in that area. 'Corner' configuration is typical for installation, one stabilizer/leveler per general corner of the RV. However, jack (item# 4205) are usually selected for this purpose, 'stack jacks' require less contact point/surface area for the RV chassis to rest on as opposed to a 6" plate.
Adjusts from 9 to 14 inches.
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