Normand wagon pack v0.5

It can be used to a certain point, but I can't fix how the physics mess with it and the bales, I modeled everything myself, it's error free but it act up, feel free to fix it if you can, I'm done ! The pack itself is a frame, the length can be adjusted if you ever do a different bed length for it (mouse control), all beds can be picked up by hand and put on the frame, just attach it (like a semi trailer), I couldn't find why, but there's a tilt function messing with them so they sit flat on the frame, there's nothing in all the xml files so where did that came from ? Anyway, they're modeled after the Normand wagon that were made local in my country, I made it as a 26' long wagon, the tandem axle work on it.