Boxing plates for your 35-40 Ford car (& ’41 pickup). Boxes from just in front of the front crossmember to behind the rear crossmember, in two pieces so they’re easier to ship and manage. 10 gauge steel; the same as the frame rails.
$186/set of four, plus $15 for shipping.
We also have boxing plates for just the front of your chassis, if you’re installing a Mustang II kit in your 35-40.