1.5 Inch Block And U-Bolt Kit | Chevy/GMC 2500HD (11-19)

Restore the rear stance of your Chevy/GMC 2500HD (2011–2019) with Rough Country's 1.5 Inch Block and U-Bolt Kit. This vehicle-specific solution is designed for owners seeking to remove sag and add reliable lift height without complex modifications.

• Lift height: 1.5 inches of rear lift to restore stance and address rear sag, improving load handling and towing potential.
• Block material: Fiberglass reinforced nylon blocks, tapered to reduce driveline angles and stronger than standard cast blocks.
• Pin size: Single 9/16-inch pin for a snug, precise fit into the factory axle pad.
• U-bolts: E-coated corrosion-resistant steel U-bolts built for durability in harsh conditions.
• U-bolt length: Four inches of thread to provide ample engagement and secure installation.
• Vehicle-specific fit: Engineered specifically for Chevy/GMC 2500HD models from 2011 to 2019 for a straightforward, reliable install.
• Includes: Two tapered fiberglass reinforced nylon blocks and corrosion-resistant U-bolts ready for mounting.
• Quality assurance: Backed by Rough Country’s Satisfaction Guarantee for added peace of mind.

This kit delivers more than just extra height. The tapered nylon blocks reduce driveline angles that can cause vibrations after lifting, while the reinforced material offers superior strength over traditional cast blocks. The combination of a precise 9/16-inch pin and four inches of U-bolt thread ensures a secure, long-lasting install, even under towing or heavy payloads. Ideal for owners who want a simple, dependable way to correct rear sag, refine stance after suspension modifications, or maintain a level look across the axle—without compromising ride quality or durability.