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Part #: 304

Moog 304 Universal Joint

Rear Driveshaft at Rear Axle
⚙️ 12 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Dodge and Fargo, W350, W300, W300 Pickup, W200 Series, W300 Series, and W200 Pickup
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Moog Universal Joint for Dodge W300 and W350 Drive Shafts

The Moog 304 universal joint is designed specifically for Dodge W300 and W350 models, providing reliable driveline performance. This greaseable U-joint features four grooved round bearings to ensure smooth operation and durability under demanding conditions.

  • Compatible with Dodge W300 and W350 drive shafts
  • Part number 304 for precise identification
  • Four grooved round bearing caps for enhanced stability
  • Greaseable design with regular lube fitting in cross for easy maintenance
  • Bearing cap diameter: 1.231 inches (31.2 mm)
  • Length measurements: 3.000 inches (76.2 mm) on both axes

Technical Specifications and Features

The Moog 304 universal joint features four grooved round bearings that provide consistent rotational support and reduce wear. Each bearing cap measures 1.231 inches (31.2 mm) in diameter, ensuring a precise fit within the drive shaft assembly. The U-joint is greaseable, equipped with a regular lube fitting located in the cross, allowing for straightforward lubrication and extended service life. Length measurements are 3.000 inches (76.2 mm) on both axes, measured from outside groove to outside groove and inside groove to inside groove plus the thickness of two lock rings, ensuring compatibility with the OE Detroit 5380 series.

Applications and Problem Solving

  • Replaces worn or damaged universal joints on Dodge W300 and W350 drive shafts
  • Addresses driveline vibrations caused by failing U-joints
  • Prevents premature bearing wear with greasable design
  • Restores smooth rotational movement in the driveline
  • Compatible with OE Detroit 5380 series for direct replacement

Installation Notes and Tips

When installing the Moog 304 universal joint, ensure the bearing caps are properly seated and the grease fitting is accessible for routine maintenance. Use appropriate tools to avoid damaging the bearing caps or cross. Regular lubrication through the lube fitting will help maintain optimal performance and extend the life of the U-joint. Verify fitment with Dodge W300 and W350 specifications before installation.

Quality Assurance and Warranty

Moog universal joints are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. This part is designed to match the specifications of the Detroit 5380 OE series. While specific warranty details are not provided here, Moog products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandMoog
Part Number304
Bearing Cap Axis 1 Diameter1.231
Bearing Cap Axis 1 Diameter31.2
Bearing Cap Axis 2 Diameter1.231
Bearing Cap Axis 2 Diameter31.2
Bearing Cap Type4 Grooved Round Bearings
Bearing Diameter A - Inch1.231
Bearing Diameter A - mm31.2
Bearing Diameter B - Inch1.231
Bearing Diameter B - mm31.2
Bearing Type ARound Grooved
Bearing Type BRound Grooved
GreaseableYES
ImageUJoint_4Grooved.tif
Length A - Inch3.000
Length A - mm76.2
Length Axis 13.000
Length Axis 176.2
Length Axis 23.000
Length Axis 276.2
Length B - Inch3.000
Length B - mm76.2
Length Measurement AOutside of Groove to Outside of Groove
Length Measurement BInside of Groove to Inside of Groove plus thickness of 2 Lock Rings
Lube Fitting LocationRegular Lube Fitting in Cross
LubricateableYES
OE SeriesDetroit 5380
U-Joint Identification4 Grooved Round Bearings

This part fits 12 vehicles. Search below:

YearMakeModelPositionNotes
1989DodgeW350Rear Driveshaft at Transmissionwith 3 (in) Outside Diameter Yoke Span; Inside Lock Rings; Premium; with 3 (in) Outside Diameter Yoke Span
1989DodgeW350Rear Driveshaft at Rear Axlewith 3 (in) Outside Diameter Yoke Span; Inside Lock Rings; Premium; with 3 (in) Outside Diameter Yoke Span
1988DodgeW350Rear Driveshaft at Transmissionwith 3 (in) Outside Diameter Yoke Span; Inside Lock Rings; Premium; with 3 (in) Outside Diameter Yoke Span
1988DodgeW350Rear Driveshaft at Rear Axlewith 3 (in) Outside Diameter Yoke Span; Inside Lock Rings; Premium; with 3 (in) Outside Diameter Yoke Span
1987DodgeW350Rear Driveshaft at Rear AxleUniversal Joint with 3" Outside Diameter Yoke Span, Premium
1986DodgeW350Rear Driveshaft at Rear AxleUniversal Joint with 3" Outside Diameter Yoke Span, Premium
1985DodgeW350Rear Driveshaft at Rear AxleUniversal Joint with 3" Outside Diameter Yoke Span, Premium
1984DodgeW350Rear Driveshaft at Rear AxleUniversal Joint with 3" Outside Diameter Yoke Span, Premium
1983DodgeW350Rear Driveshaft at Rear AxleUniversal Joint with 3" Outside Diameter Yoke Span, Premium
1982DodgeW350Rear Driveshaft at Rear AxleUniversal Joint with 3" Outside Diameter Yoke Span, Premium
1976DodgeW300Rear Driveshaft at Rear AxleUniversal Joint with 3" Outside Diameter Yoke Span, Premium
1975DodgeW300Rear Driveshaft at Rear AxleUniversal Joint with 3" Outside Diameter Yoke Span, Premium

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

114-362114-372114-373130120090210-130128056X2813003-005645U22025-1301XDT1301G5-1301XU1301

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.