3 Inch Block And U-bolt Kit | Ford F-250 Super Duty 2wd/4wd (1999-2010)

Built for F-250 Super Duty owners who want to restore ride height and correct rear-end sag, this 3-inch block and u-bolt kit pairs fabricated steel blocks with heavy-duty fasteners to lift your rear suspension safely. The tapered design reduces driveline angles and supports up to 33–34 inch tires without compromise.

Installed and serviced at Road Runner Wheels & Tires. Most suspension upgrades go in the same day. Call (678) 400-6467 to schedule.

What's included

• Fabricated steel blocks (pair) — Stronger and longer-lasting than cast blocks, tapered to reduce driveshaft angle and fitted with single 9/16-inch pin for factory axle pads. 2.5 inches wide, powder coated black.
• U-bolts (set) — 5/8-inch thread, 3.625-inch inside width, 16.5-inch inside length with four inches of thread for secure installation. E-coated black and corrosion-resistant.

Important notes

• Does NOT fit models equipped with overload springs.
• Does NOT fit dually models.

Why customers pick this at Road Runner

• Rough Country Satisfaction Guarantee backed by local experts who install these kits every week.
• Fabricated steel construction outlasts cast alternatives and handles the demands of lifted Super Duties.
• Tapered blocks preserve driveline geometry and reduce vibration — critical on 4WD models.
• Professional installation and alignment performed in-house to ensure correct geometry and tire clearance.

Ready to build it? Call (678) 400-6467. Hablamos Español.