fattirebicycles
+1y
That is absolutely your problem. put your hinges lower at least, if not further back as well. the longest point of your box(from hinge point to corner) is below level. the corner moves forward, until it becomes level with the hinge point, and after it gets above the height of the hinge, it moves rearward again. the lower you make your hinge mounts, the less space you will need to swing in. the front/back location determines how much your bed pivots down in the back. draw a pic of the truck on cardboard, with the ground level too,then draw a bed on paper and cut it out. use a pin or needle, and experiment with hinge points at the rear of the bed to see where you need to be to not hit the cab with the front, or the ground with the rear.