After Looking through multiple threads on here about this mod I decided to Do is (Yes, some hate Some love) Pulled the Trigger got it done. Im running 30" Moto Crawlers on it Now. Whos Got a Great Setup Starting point on this ? PreLoad Height Front and Rear ? Preload Measured From What Points ? Shock Firmness from Hardest Back out ? My fronts with The tires measures 15" on the money fron the A Arms Inner Rear Mount to chassis.