MaxTrac 913316 Semi-Round U-Bolt Kit for 2017-2026 Ford F-250/F-350 4WD 4" Lift Blocks

Heavy-Duty U-Bolts Built for Super Duty Lift Kits

Complete your suspension upgrade with the MaxTrac 913316 Semi-Round U-Bolt Kit. Designed for 2017-2026 Ford F-250 and F-350 4WD trucks using 4-inch rear lift blocks, these heavy-duty 5/8-inch steel U-bolts provide the strength and clamping force required for lifted Super Duty applications. A durable gold zinc plated finish helps resist rust and corrosion for long-lasting performance.

Key Features

Direct Super Duty Fit

Designed for 2017-2026 Ford F-250 and F-350 4WD models using 4-inch rear lift blocks.

Heavy-Duty Steel Construction

Manufactured from premium steel for superior strength and dependable axle retention under demanding conditions.

Gold Zinc Plated Finish

Corrosion-resistant coating protects against rust, moisture, road salt, and harsh weather.

Semi-Round U-Bolt Design

Precision-formed for secure axle clamping and proper fit on lifted rear suspension systems.

Ideal Replacement Hardware

Perfect for replacing worn U-bolts or completing a MaxTrac suspension lift installation.

What's Included

(4) Semi-Round U-Bolts
Installation Hardware

Vehicle Fitment

Fits

2017-2026 Ford F-250 Super Duty 4WD
2017-2026 Ford F-350 Super Duty 4WD
Applications using 4-inch rear lift blocks

Does Not Fit

2WD Models

Important Notes

16.50" x 3.215" x 5/8" U-bolt dimensions.
Designed for 4-inch lift blocks.
Gold zinc plated finish.
2020+ F-350 dually models require removal of the upper overload spring and spacer block.
Verify U-bolt dimensions before ordering.
Professional installation recommended.
MaxTrac recommends wheels no wider than 9" with at least 4.5" of backspacing. Using wheels outside these recommendations may void the manufacturer warranty.

Product Specifications

Part Number: 913316
UPC: 706199413088
Kit Type: Lift
Product Type: Semi-Round U-Bolt Kit
Position: Rear Suspension
Material: Steel
Finish: Gold Zinc Plated
Color: Gold
Compatible Lift Blocks: 4"
U-Bolt Size: 16.50" x 3.215" x 5/8"
Engine Compatibility: Gas, Diesel
Sold As: Set
Weight: 15 lbs
Dimensions: 36" x 6" x 4"
Country of Origin: USA

Why Choose MaxTrac?

The MaxTrac 913316 U-Bolt Kit is engineered specifically for lifted Ford Super Duty trucks, delivering the strength, precise fit, and corrosion resistance needed to keep your rear axle securely mounted. Whether your truck is built for towing, hauling, work, or off-road adventures, these USA-made U-bolts are built to perform.

Perfect For

4" Lift Block Installations
Replacement U-Bolts
Lift Kit Maintenance
Tow Rigs
Work Trucks
Off-Road Builds
Heavy-Duty Applications