Re: Ride height measurement
Ditto what Mike said as a rough guideline to getting the basic setup in the right range. 1/2 inch higher at the rear is a good general rule of thumb. You should be able to visually notice a very slight rake up of the sponsons towards the rear.
If you have dropped floors I would make sure that whatever height you set the front and rear at, you have at least 4 or 4.5 inches clearance under the floors, preferably 4.5+ inches. Just a suggestion.