I have a 2008 F350 CrewCab Dually 4x4 and don't have any issues with loading my Arctic Fox 1150. I wasn't aware that there was a "danger" mark on the jacks (mine are the
Reico Titans), but have typically raised the camper 2 to 3 inches higher than the floor of the truck bed when loading and they (the jacks) haven't come apart or failed me yet.
I ran into a situation on a previous F350 single rear wheel truck where the top of the bedrails were so high that they would hit my 5th wheel. I went to the Ford Dealer and there was a
Service Bulletin about some trucks having different size blocks or seats installed between the leaf springs and the axles. The
Service Bulletin went on to say that the installation of the taller blocks could cause the top of the truck bed to come into contact with customers towing 5th wheel trailers. Mine were the taller blocks (I believe they were 1" to 1 1/2" taller) and Ford installed the shorter ones at
No Cost.
You might want to check the blocks and/or visit with your Ford Dealer about the Service Bulletin. It evidently was a common problem and Ford will only offer to fix it, if the customer asks.
If the spring blocks are not the culprit, another alternative would be use some wooden blocks (2 x 6, 2 x 8, etc.) under the feet of your camper jacks. These would keep you jacks inside the
Danger Zone when loading and unloading your camper.
I made some of these out of 2 pieces of 3/4" Oak that I laminated together so that it was 1 1/2" tall. I then cut it into a nice 11" diameter circle on my band saw (I could have left them square, but the Reico jacks have round feet, so I decided to go to a lot of time and effort to make them round). I carry the wooden blocks with me in case I am in an area where the ground isn't that firm. The blocks spread the weight over a larger area and won't sink into the ground like the jack feet sometimes do.
I hope that some of this information was helpful to you!
hi thanks for that yes if i get the box high enough to give the box 2 or so inches clearence writing appears saying danger not not operat above this level and as my dually is quiet tall it is a pain both for getting in the box and the stability question when demounting is the stable lift an good or what whats the best way of securing the box ?? as i must import everthing and can be an expensive mistake if i get the wrong fittments.