Boxing Kit We have reintroduced our chassis boxing kit PBH 2000 . Now using laser cut 3-mm mild steel plates for greater accuracy. Boxing will increase the torsional strength of your chassis & simplify the fitting of cross members. Each of the 12 plates is stamped to show the assemble sequence & full instructions are supplied. Access holes are provided for the standard body mounts, though tapped steel blocks could be welded into the rails before the boxing plates are attached. Ford Style Chassis Plan Reproduced to help you check the dimensions of your chassis, a good bases for planning your modifications. Printed in A3 size for clarity.