I was having trouble finding a rear bone that would work, and wanted to use the 22 rear stub axles. So, I made some. On my previous project I tried epoxy to bond the halfs with a sleeve. One bone to this day I cannot get apart, the other would never stay together lol. This time I soldered them. I use two broke sc10 cvds, which fit right on the 22 rear stub axle. I then cut two losi dog bone ends off. I joined them with some tight fighting brass square tubing. Round would have looked better but the shop was out. I scuffed the bones on the ends nearest the brass. Then I laid my iron on the scuffed area until it was really hot and flowed solder over the areas. I tried to twist the cvds so it would spread as evenly as possible. The pic below is before I soldered them.