Gen-Y 10K Adjustable 2-Ball Mount with Stacked Receivers # 325-GH-315 is suitable for your application holding a winch mount and winch for pulling cars onto your trailer.
In this horizontal line pull configuration the winching force/car weight will appear to the ball mount to be just like trailer weight so the ball mount can be used with up to a 10K load, or up to the capacity of your winch mount, winch or its cable or strap. Naturally the hitch on your diesel pickup also needs to be... view full answer...