Spintires - Series: "Builders" V3.1

Added 4 trailers. The material is taken from the mod “Trailer Pak version 23.05.17 for SpinTires (v03.03.16)”, authored by GolmanRS.

Changelog:
– Broke into folders:
No. 1 Mainly platforms;
No.2 4 trailers: changed the wheels and adjusted the hitch;
No. 3 Modified default towbar. For Kraz255 added interchangeable wheels.

You can put it all together or separately

Authors: Dmitry Tkachev