Description
Product Overview
The PQY CAP31 Axle Shaft Seal Kit is engineered for Ford Super Duty models (F250, F350, F450, F550) from 1998 to 2005 and compatible Excursion trucks. Crafted from high‑hardness steel and premium rubber, each component resists corrosion, high temperatures, and impact. The kit includes outer axle seals, tube dust seals, O‑rings, inner tube seals, spindle needle bearings, thrust washers, and snap rings, providing a complete rebuild solution. Package dimensions are 10.63 x 7.09 x 1.97 inches and the weight is 2.2 pounds, making storage and installation straightforward.
Usage
Designed for professional mechanics and DIY enthusiasts, this seal kit restores front axle integrity after wear, leaks, or noise issues. Ideal for off‑road adventures, heavy‑duty hauling, and daily commuting, it prevents dirt and moisture from entering the axle, ensuring smoother steering and longer component life. 
Why Choose Us
PQY combines rigorous testing with precision machining to deliver seals that meet OEM standards. The steel components offer superior strength while the rubber seals provide flexible, long‑lasting protection against contaminants. Each kit undergoes quality inspection, guaranteeing fit and performance that rivals factory replacements. Our commitment to durability reduces downtime and maintenance costs for fleet owners and individual drivers alike.
Key Features
- Complete front axle rebuild kit – no additional parts needed
- High‑hardness steel and heat‑treated rubber for maximum durability
- Corrosion‑resistant coating extends service life in harsh environments
- Precision‑fit components ensure leak‑free operation and reduced noise
- Compatible with 1998‑2005 Ford Super Duty and Excursion models
FAQ
What vehicles are compatible with this kit?
The CAP31 kit fits Ford Super Duty F250, F350, F450, F550 from 1998‑2005 and Ford Excursion models from 2000‑2005.
Do I need any special tools for installation?
Standard hand tools such as a socket set, torque wrench, and seal puller are sufficient. Detailed instructions are included.
How does the rubber material resist corrosion?
The rubber is formulated with anti‑oxidants and heat‑resistant compounds, providing protection against oil, water, and road salts.
Can this kit be used for a rear axle?
No, the CAP31 kit is specifically designed for front axle applications.
What warranty does PQY offer?
PQY provides a one‑year limited warranty covering manufacturing defects for peace of mind.




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