What's the best way to break my rig while towing?

My 2 cents
5000+ lb on 2500 series truck is overload.
Even when rear axle is rated, suspension is beefed up, it will bring all kind of handling and stabilization issue.
On other hand Harbor Freight is selling 1000 lb trailers for less than $300.
I have 1 of those for over 20 years and even I always had full size pickups in this time, I love the trailer for ease of loading and unloading and very often used trailer behind the car, instead of driving teeth-grinding pickup.