I got tired of lugging deer up the tailgate by myself soI build basically a ladder and it works JFL. I simply strap the deer to the "loader" with cam straps, pick up the front, set it on the end gate, then pick up the rear and slide into the truck bed. I use it in many trucks with same results

Picture is usually worth a thousand words but this one is worthless than a100(Paint drawing)but should givesthe idea.