[Zderf]

Hello Delola,

The 2X4's are placed at each front corner and at the slip joint where the front and rear ramp sections join. This is where the adjustment is made for overall length of the lift. The reason for the 2X4's is make the assembly level, as there is a radius at the rear for the large round lift bar that protrudes below the ramp bottom about 1.5".

For changing to lift mode in the fashion that I have developed, you must have at least one center bridge placed up front from which to jack up the front of both ramps simultaneously. It takes me about 5 minutes to convert from floor to ramp up using the center bridge with the hook I designed and installed (idea submitted to Kwiklift, but no feedback on whether they have made that an option).

Otherwise, you'll need to 2 people. One to lift the front of each ramp whilst the other places the stand under the ramp. The ramps weigh about 150# each.

The assembly does not slide at all. There is really now place to "push" it. The transition ramps that come with it work nicely when the ramp is up, and the 2X6 transition one builds for the floor position works nicely as well.

Love it....

Zderf