Looking to replace your original, add another battery or relocate your existing battery to the driver side? If so, BROTHERS has you covered with an exact reproduction of the factory auxiliary battery tray found in 1967-72 Chevy & GMC trucks. These are commonly used in LS engine swaps to allow more clearance for the intake air cleaner/mass airflow assembly. The factory correct wiring harness is available at an extra cost if you want to run dual batteries. Our complete battery box assembly includes battery box, tray and side supports. Powder coated satin black finish for durability and protection.