Temporarily installed the axle assemblies on the low-rider trailer so I can make the shims for the axles. The wheels for the trailer have 5/8" axle holes but the wagon axles are only 7/16 of an inch. I made some bearing sleeves from copper pipe so the wheels will fit the axles. I also made some plastic spacers to keep dirt and stuff out of the wheel bearings. 

I was going to wait for a bit to get the plywood for the trailer bed but with the threat of higher lumber prices I decided to get it now. I was going to use fence boards for trailer ramps but they are made from rough cut wood and would be hard to finish. I went with a pine board instead. 

Something I though of a few weeks ago was a way to keep the trailer from moving while loading and unloading the low-rider wagon. I thought of a half dozen methods to make a parking brake for the trailer but most were complicated. I was looking at using some toggle clamps but I wanted something that works in a straight line. A Google search found what is called a push pull toggle clamp which will do what I want. I found one on Amazon for a good price. I made a brake shoe out of wood and a bit of rubber matting. I just need to figure out a way to mount it under the trailer.