This coil spring set by MOOG is designed for the rear suspension. The heavy-duty springs have 9 twists and have a stock height. They are made in the United States and have a manufacturer part number of CC80535.OE/OEM part number Z-3810DM.In terms of specifications, the item has a diameter of 4.5 inches and a length of 12.25 inches. It is also 4.5 inches wide. The springs are black in color.