1.5 inch Mono Leaf Rear Block kit with Shock Extensions. SuspensionMAXX Rear Block and Leaf Spring U-Bolts - Lock Down Strength, Lift with Confidence. When it comes to your suspension, U-bolts are more than hardware - they're your connection to control and safety.

SuspensionMAXX Leaf Spring U-Bolts are engineered for maximum clamping force and long-lasting durability, whether you're upgrading leaf springs or installing a lift kit.

Why truck owners rely on SuspensionMAXX U-Bolts:

• Engineered for Lifted Trucks: Built longer and stronger to accommodate aftermarket leaf spring setups and blocks.
• Heavy-Duty Strength: Made from high-tensile steel for maximum holding power under load and off-road stress.
• Secure Fit, No Slippage: Keeps your axle securely fastened to the leaf springs - essential for safe towing and trail use.
• Corrosion-Resistant Coating: Withstands moisture, salt, and rough terrain to maintain integrity over time.
• Complete Kit Ready to Install: Includes hardened washers and high-strength nuts for a precise, secure fit.

Whether you're reinforcing your rear suspension or upgrading for off-road duty, SuspensionMAXX Leaf Spring U-Bolts deliver the strength and confidence your truck demands

SuspensionMAXX 1.5 inch Mono Leaf Rear Block kit with Shock Extensions

• Solid Aluminum Blocks, precision CNC'd Machined
• Round Grade 8 U-bolts
• shock extensions to maintain proper shock travel
• 100 percent American Made
• Backed by the MAXX Lifetime Structural Warranty

Combined with our 2.5 inch front leveling kit for the perfect amount of lift for your 2024-2025 Silverado/Sierra 1500