I'm not sure if this will be usable with an enclosed trailer, but with a 2000 lb. open trailer, this works.
First, you must have a compensator system, not the individual axles on the trailer. If you have leaves and a compensator, read on.
Jack the tongue of the trailer as high as possible/neccessary. A very large gap will appear between the frame and the front of the compensator on each side. Place a block of wood of appropriate size between the frame and the compensator, one on each side, and lower the tongue.
As the trailer returns to level, the rear wheels will be off the ground, converting the trailer to a single axle type. This will make maneuvering very easy, as the tires won't scrub when turning.
If a tongue wheel in on the trailer, turning in its own radius will be possible.
Hope it works for you.
Good racing.
Bill