I got this from a Dodge Hemi guy years ago. He made it for his Av8 but never used it. It apparently sat too low for his needs. It bolts under the water pump housing like the OEM horse shoe mount. I'll call it 4 7/8 inches. Side to side bolts are 20 inches. Total length is 20 1/2 inches. Its 4 inches tall and a chunk of aluminum 3/4 inch. $50 plus the ride...