Hey, got an old "jungle gym" trailer that carries around my 59 Biesemeyer. Looks to have some sort of leaf springs from a 1950's P/U truck but it's really hard to figure out sizes online. Also I had to replace the wheel bearings a while back and they ended up being 1947-59 GM tapered roller bearings. The springs are a little less then 2" wide and are 36" long from eye to eye. They also have 9 layers. Anyone know where they came from?