Spicer 1555WJ Series Front Axle Shaft U-Joint Kit for 2011+ Ford F-450 & F-550 (Inside Snap Rings)

Eliminate violent front-axle binding, stop severe steering wheel feedback, and restore maximum torque capacity to your commercial-duty chassis with this genuine Spicer 1555WJ Series Front Axle Shaft U-Joint Kit. Specifically engineered to survive the immense rotational stresses of late-model Ford F-450 and F-550 4WD Super Duty trucks, this ultra-heavy-duty component is the definitive original equipment solution for servicing your front outer steering axle shafts.

On massive commercial-grade 4x4 rigs, the front axle shaft universal joints operate under extreme duress. They must continuously channel high-output diesel torque straight to the front wheels while simultaneously pivoting up to 45 degrees during tight steering maneuvers. Over high mileage, severe fleet towing, or heavy commercial snowplow abuse, factory universal joints wear down. A failing front axle U-joint will present itself through a loud metallic clicking or popping noise during tight turns, severe steering wheel binding/jerking when the 4WD system is engaged, or visible rust weeping past the bearing cap seals.

This original equipment manufacturer (OEM) Spicer Life Series (SPL) upgrade is built with a rugged, cold-formed solid-steel body to deliver maximum structural density and strength. It features an Inside Snap Ring (ISR) retaining design and specialized thrust washers within the bearing caps to eliminate friction, lower operating temperatures, and prevent costly axle shaft yoke ear galling.

Kit Contents:

• (1) Premium 1555WJ Series Solid-Body U-Joint Cross Assembly

• (4) Precision-Ground Journal Tapered Needle Bearing Caps

• (4) High-Strength Inside Snap Rings (ISR)

• (4) Advanced Multi-Lip Synthetic Rubber Seals

Kit Highlights:

• Genuine Spicer Life Series (SPL) Quality: Manufactured by the industry-leading original equipment supplier to provide up to 10 times the service life of traditional greaseable aftermarket joints.

• Solid-Body Design: Forged without internal grease channels to optimize structural cross-sectional density, making it virtually impervious to high-torque shearing forces.

• Triple-Lip Seal Protection: Advanced synthetic multi-lip seals form an airtight environmental barrier, permanently locking premium synthetic lubricant in while keeping trail water, road salt, and abrasive mud out.

• Eliminates Axle Binding: Restores fluid, uninhibited steering knuckle rotation, keeping your commercial-duty front end safe on the highway and the job site.

Vehicle & Axle Fitment:

• Make: Ford Heavy Duty Commercial Fleet (4WD Only)

• Models: F-450 Super Duty and F-550 Super Duty (Dual Rear Wheel / DRW Chassis Cab Configurations)

• Years: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026

• Position: Front Outer Axle Shaft — Steering Knuckle Location (Fits Left or Right Side — 2 Kits Required per Vehicle)