1. The foundation of our third member buildup is this nodular iron dropout that we got from Randy’s Ring & Pinion. It’s a Yukon Gear & Axle Extra HD 3.062-inch nodular iron dropout (PN YP DOF9-2-306) for the Ford 9-inch rearend. Yukon equips this piece with a 5⁄8-inch cap bolts and forged caps to help ensure the unit can handle up to 1,200 hp. Retail price is $311.47.