We have for sale a frame mounted side box/ tool box. This was originally a tag-a-long apu but motor and all components have been removed so that it can now be used for storage. We have 2 different size boxes. The smaller boxes dimensions are( 30.5″ long, 21″ deep, 22″ tall.) The larger box dimensions are ( 35″ long, 21″ deep, 22″ tall.) These boxes are built to be mounted to the frame of your semi truck, box is already seat for mounting and shouldn’t require any modifications to be installed.
For any question feel free to call us a 4173535665. Also check out our website Apucenter