Dorman 946-404 Drive Shaft - Rear

Durable Drive Shaft for Ford F-250 and F-350 Super Duty

The Dorman 946-404 drive shaft is engineered to provide reliable driveline performance for Ford F-250 Super Duty and F-350 Super Duty trucks. Constructed from steel with adjustable length and greaseable features, this drive shaft is designed to meet the demands of heavy-duty applications.

• Constructed from durable steel shaft material
• 68.8-inch overall length with adjustable length capability
• 3.5-inch shaft diameter with 0.083-inch wall thickness
• Includes slip yoke for smooth driveline operation
• Greaseable design for extended service life
• Does not include CV joints or axle nut
• Compatible with Ford F-250 Super Duty and F-350 Super Duty models

Technical Details of the Dorman 946-404 Drive Shaft

This drive shaft features a regular grade steel construction that balances strength and durability for demanding truck applications. The 3.5-inch diameter shaft with a 0.083-inch wall thickness ensures structural integrity while maintaining manageable weight. The slip yoke design allows for smooth engagement and disengagement during driveline movement, reducing wear on connected components. Additionally, the greaseable feature facilitates routine maintenance, helping to prevent premature failure. The overall length of 68.8 inches is adjustable, allowing for precise fitment and alignment in Ford F-250 and F-350 Super Duty trucks.

Applications and Problem Solving

• Replacement for worn or damaged drive shafts in Ford F-250 and F-350 Super Duty trucks
• Addresses driveline vibrations caused by bent or imbalanced shafts
• Resolves issues related to excessive play or looseness in the driveline
• Improves driveline reliability in trucks used for towing or heavy hauling
• Supports maintenance needs with greaseable components to extend service intervals

Installation Notes and Tips

When installing the Dorman 946-404 drive shaft, ensure the slip yoke is properly seated and aligned to prevent driveline vibrations. The adjustable length feature should be set according to the vehicle’s specifications to maintain correct driveline angles. Regular greasing of the drive shaft is recommended to maintain smooth operation and prevent premature wear. Note that this drive shaft does not include CV joints or axle nuts, so these components must be sourced separately if needed.

Quality Assurance and Warranty

Dorman manufactures this drive shaft to meet or exceed OEM standards for fit, form, and function. The steel construction and greaseable design contribute to long-term durability under heavy-duty conditions. While specific warranty details are not provided here, Dorman typically offers limited warranties on their driveline components to ensure customer confidence in product quality.