1947-1955 Chevy Truck First Series Battery Box.  Here is a your chance to replace that corroded battery tray in your favorite truck! At a reasonable price, too. This one is 1/8" steel. The inside measures 9 3/8" wide x 7 3/8" deep. The back brace is 7 3/4" tall and the threaded hold down rods are 8 1/2" to the top of the stud.