I wanted to make a trailer for my scx24 but they all required bearings, bolts nut and like 5000000000000000000000000000000 files, so I decided to make my own, with random screws, paper clips and glue. To put the hitch on the scx24 deadbolt their should be a open frame hole behind the rear shock tower that you slide a paper clip through, in the middle of the paper clip the hitch goes on, see in the pictures. Look closely at the pictures, the quality is very bad but if you look close you can see the details. The only materials you will need are glue, random screws and possibly something to make a hole in the plastic. Oh, and a paper clip or something similar.