Stainless Drop Out Battery Box Tray Hot Rod Race Rat Fits Chevy Ford Sbc bbc Stainless Drop Out Battery Box Tray Hot Rod Race Rat Fits Chevy Ford Sbc bbc Accepts batteries up to 10-1/2" long, 7" wide, and 8" tall. This dropout battery box allows you to put your battery somewhere out of the way while still maintaining access. The box normally locks in the up position or it also drops down and locks 4-1/4" lower if needed. You can also drop the box completely out for maintenance.