A custom Dana 80 axle resides under the front of the Blazer. It was hand-built by Naeger at his shop, Custom Differentials. It features massive 3/4-inch-thick axletubes, Moser chrome-moly 35-spline axleshafts and a Detroit Locker. The suspension is composed of massive 3-inch-wide leaf springs with 5/8-inch eyebolts. The springs generate 14 inches of lift.