1971-1978 Cadillac Eldorado 15" Polished Billet Aluminum Radiator Coolant Overflow Puke Tank, Cabriolet, Biarritz, Bicentenial Edition, EldoradoThe Zirgo Standard Overflow Tank Is A Functional Treat For The Eyes! This 15" reservoir is for your 1971 1978 Cadillac Eldorado and mounts anywhere in your engine bay using beautifully crafted adjustable billet tank mounts. No need to drill holes or perform unnecessary fabrication to mount this tank, just adjust the clamping bracket and secure in seconds! Zirgo's unique internal adjustable overflow system eliminates the unsightly overflow tube from