ICON 37003 15 inch U-Bolts For Rear Blocks | 1999-2010 Ford F250/F350

Features:

• Designed for ICON rear block kits
• Fits most 4-inch rear block setups
• Compatible with 1999–2010 F250 and F350
• Made for single rear axle configurations
• Not compatible with dually rear axles
• Precision fit for Super Duty applications
• Provides secure rear block retention
• Ideal for lifted rear suspension systems
• Heavy-duty construction for added strength
• Maintains axle alignment under load
• Reliable fit for daily or off-road use
• Engineered to ICON performance standards

Secure Your Lift With Confidence Every Time You Drive

When you’re lifting the rear of your Super Duty, it’s not just about getting the right height, it’s about making sure everything stays tight and reliable under load. That’s where the ICON 37003 15-Inch U-Bolts come into play. Designed specifically for 1999-2010 Ford F250 and F350 trucks with single rear axles, these U-bolts are a perfect match for most 4-inch rear block setups. Whether you're hauling gear, towing a trailer, or just adding some lift to improve stance and clearance, these U-bolts help keep your suspension locked in and aligned. ICON’s reputation for quality means you’re getting a part you can count on, built to handle the real-world stresses of both daily driving and off-road use. They’re a straightforward upgrade, but one that plays a big role in the safety and performance of your suspension. If you're building out your lift with ICON blocks, make sure you finish the job right with hardware that's made to match.

Built To Fit Right And Hold Strong Under Load

The ICON 37003 U-Bolts are engineered to deliver proper rear block retention for Ford Super Duty trucks running 4-inch lift blocks. Sized at 15 inches in length, they provide the right fit and thread engagement for 1999-2010 F250 and F350 models equipped with single rear axles. These U-bolts are not compatible with dually configurations and are intended for use specifically with ICON rear block kits. Their job is to maintain axle alignment and spring stack compression, especially under heavy loads or during suspension articulation. Manufactured from durable, high-strength materials, they are built to perform in demanding environments while preserving ride quality and component integrity. Correct hardware selection is essential when modifying suspension geometry, and ICON designs these to integrate seamlessly into their lift systems. With a precise fit and dependable clamping force, they provide a strong foundation for any lift setup involving a 4-inch block. For performance-focused builds or everyday upgrades, these U-bolts offer the peace of mind that comes with engineered reliability.

Fits: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Ford F250/F350

Notes:

• Designed specifically for use with ICON rear block kits
• Fits most 4-inch rear block applications
• Compatible with 1999–2010 Ford F250 and F350 trucks
• Only intended for single rear axle configurations
• Not suitable for Super Duty trucks with dually rear axles
• Provides proper length and thread engagement for lift installs
• Engineered to work with ICON suspension components
• Essential for maintaining correct axle and spring alignment
• Recommended as part of a complete rear lift system
• Verify axle type and block size before purchasing