Extended Square Bend U-Bolts 8.5in x 2.5in x 9/16in - 4pcs Kit

In this review of the Extended Square Bend U-Bolts kit, the bottom line is simple: it is a straightforward replacement set aimed at drivers doing a 1-2 in lift who need durable, correctly sized fasteners to hold leaf spring assemblies in place. The reviewer finds the kit best for hands-on mechanics and DIYers who already measured their existing U-bolts before ordering, since fit is the single biggest reason to buy - it aligns with common spring brackets and keeps the assembly stable when the sizing matches.

Key Features

• Designed for 1-2 in lifts: The extended square bend profile works with modest lift setups so springs remain positioned without inducing additional lift when installed correctly.
• Heavy-duty construction: Made from robust steel to provide long-term durability and to resist deformation under load for secure spring clamping.
• Specific dimensions: At 8.5in long by 2.5in wide with 9/16in threads and 4.84in thread length, the kit delivers predictable compatibility where those measurements match the vehicle.
• Complete hardware kit: The set includes 4 square bend U-bolts plus 8 nuts and 8 washers so installers have all basic fasteners needed for a single axle.
• Square bend fitment: The square bend shape provides a consistent contact surface on spring packs and can align around lower shock brackets for a tidy fit.

Who It's For

This kit is best for owners of trucks or vans doing a light lift or replacing worn U-bolts who have measured their existing hardware and confirmed the 8.5in x 2.5in footprint and 9/16in thread size. Mechanics who prefer a no-frills, heavy-duty replacement part for leaf spring assemblies will appreciate the straightforward spec match and included nuts and washers.

Those who should look elsewhere include owners who need custom-length or different diameter U-bolts, or anyone unsure of their current U-bolt dimensions; this kit will not fit vehicles that require a different thread pitch, length or a round-bend U-bolt profile.

Pros & Cons

Pros

• Durable steel construction provides reliable clamping of the spring assembly under normal use.
• Includes all necessary nuts and washers for immediate installation on one axle.
• The 8.5in x 2.5in square bend tends to align well with common lower shock bracket geometry.

Cons

• Fit is dependent on matching the exact dimensions; buyers must measure existing U-bolts before purchasing.

Specifications

Our Verdict

For anyone replacing worn U-bolts on a light 1-2 in lift or restoring spring alignment, this kit offers solid value thanks to its heavy-duty steel construction and complete hardware package. It is a sensible, cost-effective choice when the provided 8.5in x 2.5in dimensions and 9/16in threads match the vehicle, but those without a measurement should confirm fitment before buying.

Frequently Asked Questions

Will these U-bolts work for a 2 in lift?
Yes, they are designed for 1-2 in lift applications, provided the 8.5in length and 2.5in width match your current setup.

What hardware is included?
The kit includes 4 square bend U-bolts plus 8 nuts and 8 washers for installation.

Are these round or square bend U-bolts?
They are square bend U-bolts intended to seat on leaf spring packs and related brackets.