I have a 53 Ford F100. I had 8 leaves in the rear springs & took out 4 leaves. I thought that would lower the back end but it made higher in stead. The back was already sitting too high. The top of the frame in front is 14 inches off the ground. In the rear the top of the frame is 33 an half off the ground.I wanted the rear to sit higher but this is too high. On a 53 the differential is below the springs. I am thinking of doing a flip kit. My spring pack is 1 an half inches , the differential tube is 2 an half inches. I currently have 9 an half inches from the top of the springs to the bottom of the frame. There no weight on the frame now except the cab with no doors. If I do a flip kit I figure I will have about 5 inches of clearance from frame to differential. Is that enough clearance? Is this the best way to lower my back end & is it the cheapest way?