Artum Snowbird wrote:
With my existing truck I had to put a block under the boat wheel to get it on the ball when I had the airbags at their lowest setting. After I removed the airbags completely, the back of the truck dropped enough to put the tongue on without the block.
In your case, are your tires oversized? Can you put 16 inch wheels, or bigger than you have on the trailer? Sounds a bit drastic, but it's what you want to do. Price out the options.
5 " clearance is normally adequate between truck bed and overhead. Your oversized tires and wheels on the truck are adding to the trouble, so if you want to keep your truck height the way it is, you'll have to lift the trailer. If you do that then weld in extra xmembers between the spring hangers to counter the lateral loads.
It boils down to lower the truck or hitch , or raise the trailer. Whats your choice?