what I do is drive it up on the door to back of trailerstraight in, but to the right some, were I still can open door. I put it in park, hook winch up to front eye I welded on frame, put tension on cable, tell its taunt, go open door and put in neutral, make sure tires are straight, then in she goes, when rear clears back door I hook up two tie back straps to rear, then winch on in tell she stops, get out rachet straps crossed in front tighten them up, then put a lil slack in winch cable, but leave it hooked up and ready to roll, on all 4 corners of my blazer I have a bracket with a hole in it welded to frame, so I dont have to crawl under rig, simple, straight in straight out