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Moog 304 Universal Joint
| Brand | Moog 304 |
|---|---|
| Position | Rear Driveshaft at Rear Axle |
| Bearing Cap Axis 1 Diameter | 1.231 |
| Bearing Cap Axis 1 Diameter | 31.2 |
| Bearing Cap Axis 2 Diameter | 1.231 |
| Bearing Cap Axis 2 Diameter | 31.2 |
| Bearing Cap Type | 4 Grooved Round Bearings |
| Bearing Diameter A - Inch | 1.231 |
| Bearing Diameter A - mm | 31.2 |
| Bearing Diameter B - Inch | 1.231 |
| Bearing Diameter B - mm | 31.2 |
| Bearing Type A | Round Grooved |
| Bearing Type B | Round Grooved |
| Greaseable | YES |
| Image | UJoint_4Grooved.tif |
| Length A - Inch | 3.000 |
| Length A - mm | 76.2 |
| Length Axis 1 | 3.000 |
| Length Axis 1 | 76.2 |
| Length Axis 2 | 3.000 |
| Length Axis 2 | 76.2 |
| Length B - Inch | 3.000 |
| Length B - mm | 76.2 |
| Length Measurement A | Outside of Groove to Outside of Groove |
| Length Measurement B | Inside of Groove to Inside of Groove plus thickness of 2 Lock Rings |
| Lube Fitting Location | Regular Lube Fitting in Cross |
| Lubricateable | YES |
| OE Series | Detroit 5380 |
| U-Joint Identification | 4 Grooved Round Bearings |
| Fits | Dodge and Fargo · 12 vehicles |
OE direct replacement. Fast, hassle-free installation with no modifications needed.
Greaseable design. Regular lube fitting in the cross helps simplify maintenance.
Premium materials. Rigorous testing helps deliver reliable performance you can count on.
Cross-references Four Seasons 20090, GMB 210-1301 and Spicer 5-1301X for the same application. See all 14.
Moog 304 Universal Joint for Drive Shaft Service
The Moog 304 is a greaseable universal joint built for driveline service where precise fit and dependable operation matter. It is a premium replacement for select Dodge rear driveshaft applications, including W300 and W350 models, with 3-inch outside diameter yoke span requirements.
Key Features
- Part number: 304
- Universal joint for drive shaft and rear driveshaft service
- 4 grooved round bearings with 1.231-inch bearing cap diameter
- Greaseable design with regular lube fitting in the cross
- 3.000-inch length on both axes for consistent fitment
- OE series reference: Detroit 5380
- Cross-references Spicer 5-1301X for the same application
Detailed Description
Moog 304 is a premium universal joint engineered for driveline repair on compatible Dodge trucks that use a 3-inch outside diameter yoke span. The 4 grooved round bearing design, 1.231-inch bearing caps, and greaseable cross help support smooth articulation in rear driveshaft service. This part number 304 is listed for 1982-1987 Dodge W350 rear driveshaft at rear axle, 1988-1989 Dodge W350 rear driveshaft at transmission and rear axle, and 1975-1976 Dodge W300 rear driveshaft at rear axle. If you are searching for a Dodge W350 universal joint or a Dodge W300 rear driveshaft U-joint replacement, Moog 304 matches those confirmed applications.
What It Helps Fix
- Driveline vibration caused by worn U-joint bearings
- Clunking or driveline noise during acceleration or deceleration
- Loose or rough rear driveshaft articulation
- Service issues on greaseable universal joint applications
- Wear at the rear axle or transmission end of the driveshaft
Installation Notes and Tips
Verify the yoke span, bearing cap diameter, and groove style before installation. This Moog 304 universal joint uses 4 grooved round bearings and is specified for applications with a 3-inch outside diameter yoke span and inside lock rings where noted. Clean the yoke bores thoroughly, confirm the bearing cap seating surfaces are free of damage, and grease the joint after installation through the fitting in the cross. For Dodge W350 and W300 driveline service, match the position listed in the fitment data exactly: rear driveshaft at transmission or rear axle.
Quality Assurance
MOOG Premium universal joints are backed by material selection and testing focused on reliable driveline performance. The brand’s problem-solving design approach supports straightforward installation and consistent service fitment for the listed applications.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1989 | Dodge | W350 | Rear Driveshaft at Transmission | with 3 (in) Outside Diameter Yoke Span; Inside Lock Rings; Premium; with 3 (in) Outside Diameter Yoke Span |
| 1989 | Dodge | W350 | Rear Driveshaft at Rear Axle | with 3 (in) Outside Diameter Yoke Span; Inside Lock Rings; Premium; with 3 (in) Outside Diameter Yoke Span |
| 1988 | Dodge | W350 | Rear Driveshaft at Transmission | with 3 (in) Outside Diameter Yoke Span; Inside Lock Rings; Premium; with 3 (in) Outside Diameter Yoke Span |
| 1988 | Dodge | W350 | Rear Driveshaft at Rear Axle | with 3 (in) Outside Diameter Yoke Span; Inside Lock Rings; Premium; with 3 (in) Outside Diameter Yoke Span |
| 1987 | Dodge | W350 | Rear Driveshaft at Rear Axle | Universal Joint with 3" Outside Diameter Yoke Span, Premium |
| 1986 | Dodge | W350 | Rear Driveshaft at Rear Axle | Universal Joint with 3" Outside Diameter Yoke Span, Premium |
| 1985 | Dodge | W350 | Rear Driveshaft at Rear Axle | Universal Joint with 3" Outside Diameter Yoke Span, Premium |
| 1984 | Dodge | W350 | Rear Driveshaft at Rear Axle | Universal Joint with 3" Outside Diameter Yoke Span, Premium |
| 1983 | Dodge | W350 | Rear Driveshaft at Rear Axle | Universal Joint with 3" Outside Diameter Yoke Span, Premium |
| 1982 | Dodge | W350 | Rear Driveshaft at Rear Axle | Universal Joint with 3" Outside Diameter Yoke Span, Premium |
| 1976 | Dodge | W300 | Rear Driveshaft at Rear Axle | Universal Joint with 3" Outside Diameter Yoke Span, Premium |
| 1975 | Dodge | W300 | Rear Driveshaft at Rear Axle | Universal Joint with 3" Outside Diameter Yoke Span, Premium |
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