I had my dealer try and remove the spacers between the rear axle and the leaf springs. But to his suprise and mine they seem to made to the springs. He said he hasnt seen this before and that they must have changed the design. He also said he could not find any service notices about lowering that back end for pulling a 5ver. Any one else have this problem? How did you get around lifting your trailer so high? Looks mine would take some where around 5 inches to level out. My truck is a stock late 07 2500 and my trailer is a 93' Holiday Rambler 5ver converted to a goose neck.