I bought a cheap winch from harbor freight to load them in the side by side. Of course it’s from harbor freight so it broke 2nd time using it. But it worked so well I bought a winch from a company called Heavens Trail. Their winch is designed for installation of heavy ladder stands but it’s also ideal for effortlessly loading game in the back of a side by side. I have not had to resort to tractor yet but like the idea of the loader to dress them especially given I’ve been thinking about building a place to hang and skin them anyway