Welcome to East Fork Sales where We Have Your Part! Merritt 3507 No Drill Mounting Kit for Aluminum Side Mount Battery Boxes. Works With the Following Box Numbers: 3552, 3561, 3521, 3562, 6504, 3556, 3514, 3563. High Quality Battery Box Mounting Kit. Make Of Aluminum and Steel. (2) Zinc Angle Rails. (4) Frame Clamp Bolts. For Side Mount Battery Boxes. Clamps to Upper and Lower Flange of Frame. Strong, Durable and Easy to Install. Easy to Move from Truck to Truck. Please look at pictures closely. We want happy customers and you want what you paid for. We do our best to take the best picture possible to show product and the packaging if product comes with Box. Some boxes may show signs of wear and smudging from being handled but pictures will show the condition of part and contents that comes with product. If you would like to see better pictures of a certain angle of box or product feel free to message me and we will get one sent to you. All of our parts are new old stock. Vendors change numbers of products often and each vendor has their own number but part is still new and interchangeable. Most Dealerships can tell you if this product cross references to match what you are needing. Buyers are solely responsible to insure that product use and fitment is consistent with their truck or application. We are not responsible for Undeliverable Addresses. If Product has been installed or hooked up. If you have a preference please contact before purchasing.