Rough Country Universal Square U-Bolt Kit — 2.5-in Inside Width x 8.5-in Length, 9/16-in Thread, Set of 4

Rough Country Universal Square U-Bolt Kit

Upgrade your suspension with a robust four‑piece square U‑bolt kit designed for 2.5‑inch axle tubes. This kit features U‑bolts with a 9/16‑inch thread and an inside footprint of 2.5 inches by 8.5 inches, created to support lifted, hauled, or towed configurations. The hardware is crafted from high‑strength steel and finished in a black e‑coat to resist rust, road grime, and moisture so you can count on steady performance across seasons and terrains.

Built for durability and long‑lasting protection

• Heavy‑duty construction: Square U‑bolts engineered to replace worn hardware and secure your suspension under demanding conditions.
• Corrosion‑resistant finish: Black e‑coat fights rust and debris for durable use on and off the trail.
• Tailored fit for custom setups: Available in sizes to match your axle and lift configuration, ideal for upgrades or replacements.
• Reliable suspension hold: Precisely engineered to keep leaf springs firmly in place for a smoother, safer ride.
• Ready‑to‑install kit: Includes 4 square U‑bolts with nuts and washers; inside footprint 2.5"W x 8.5"L with 9/16" threads.

Versatile use for trucks, trailers, and leaf springs

Whether you’re lifting a truck, rebuilding a trailer axle, or securing leaf springs, this universal kit offers dependable hardware designed to work across a range of suspension setups. The combination of a sturdy steel core and protective coating helps it stand up to towing, hauling, and light off‑road use, while its universal sizing makes it a practical addition to a DIY toolkit. Think of it as a solid baseline upgrade or replacement that can support your project without overcommitting to a single configuration.

For best results, verify your axle tube size and thread type before installation. The kit’s included nuts and washers simplify assembly, and the square U‑bolt design helps distribute clamping force evenly across the springs. While performance can vary with different setups, this Rough Country kit is positioned as a reliable, ready option for compatible 2.5‑inch tubes and 9/16‑inch threads.

What you get and how to approach installation

With four U‑bolts, nuts, and washers, this complete kit is designed for straightforward installation using common hand tools. Prepare your surface, align the leaf springs, and bolt the U‑bolts into place following your vehicle’s suspension considerations. If you’re unsure about fitment, consult your service manual or a qualified technician to confirm compatibility with your specific model and lift configuration.