Hi All Well we found on our last holidays that we had to dig a hole for the jockey wheel so we could get the caravan level from front to back.
So I had a spare mule type jockey wheel which I removed the eight inch solid rubber wheel and the bolt on outer hub. I then cut off both the vertical yoke arms which held on the wheel, which then left me with a flat piece of steel welded onto the adjustable stem. Now I drilled two holes through this flat piece of steel which matched two opposite holes in the hub I took off the wheel. Then bolted this hub onto this, so now I have an adjustable stem with a six inch diameter disc on the bottom. As this area we camp on is very sandy I also cut a piece of wood so if it sinks into the sand to much I can place the wood underneath giving a wider surface area for support. You also have to take pieces of wood so if the caravan is not level from side to side place these under the tire on one side . This may involve jacking up the van on that side then placing the wood underneath. Once in position lock on the manual brake so it does not move then drop the corner supports so it is solid or as solid as possible. I cut some 12 x 2 hardwood up 14 inches long and cut some bevels on each end with my power planer, then painted them so they clean up easier after use. I always take along a sprit level so we have the caravan perfectly level, and the fridge manufacturer recommends that for maximum performance this is so. Ray [Non-text portions of this message have been removed]