I'm trying to figure out what I should do. When I put any trailer on the back of my truck, either a bumper pull, or gooseneck, the rear sinks and sinks.

Should I put air bags on, or what? If so, which air bags should I use. I'm like everyone else in this economy, trying to save some $$$$, so, personally, the cheapest option will probably be the best. I'm thinking I need something around the 3000 lb capacity.

Thanks for your thoughts and help.
Tim