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Moog 391 Universal Joint
| Brand | Moog 391 |
|---|---|
| Position | Front Driveshaft at Front Axle |
| Bearing Cap Axis 1 Diameter | 0.985 |
| Bearing Cap Axis 1 Diameter | 25.0 |
| Bearing Cap Axis 2 Diameter | 0.985 |
| Bearing Cap Axis 2 Diameter | 25.0 |
| Bearing Cap Type | 4 Grooved Round Bearings |
| Bearing Diameter A - Inch | 0.985 |
| Bearing Diameter A - mm | 25.0 |
| Bearing Diameter B - Inch | 0.985 |
| Bearing Diameter B - mm | 25.0 |
| Bearing Type A | Round Grooved |
| Bearing Type B | Round Grooved |
| Greaseable | YES |
| Image | UJoint_4Grooved.tif |
| Length A - Inch | 1.732 |
| Length A - mm | 44.0 |
| Length Axis 1 | 1.732 |
| Length Axis 1 | 44.0 |
| Length Axis 2 | 1.732 |
| Length Axis 2 | 44.0 |
| Length B - Inch | 1.732 |
| Length B - mm | 44.0 |
| 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 Bearing |
| Lubricateable | YES |
| OE Series | Nissan and Subaru |
| U-Joint Identification | 4 Grooved Round Bearings |
| Fits | Nissan · 46 vehicles |
Greaseable design. Regular lube fitting in the bearing helps simplify maintenance.
4 grooved round bearings. Built for smooth, dependable driveline articulation.
MOOG Premium quality. Backed by rigorous testing for reliable performance.
Cross-references Anchor 10027, GMB 220-0027 and Hygrade Tuneup 1501 for the same application. See all 13.
MOOG 391 Universal Joint for Nissan and Subaru
MOOG 391 is a greaseable universal joint built for driveline service where smooth articulation and dependable fit matter. It uses 4 grooved round bearings with a regular lube fitting in the bearing, making it a practical choice for Nissan D21, Pathfinder, and 720 driveline repairs.
Key Features
- Part number: 391
- Universal joint with 4 grooved round bearings
- Greaseable design with lubricateable bearing construction
- Bearing cap diameter: 0.985 in. / 25.0 mm
- Length A and Length B: 1.732 in. / 44.0 mm
- Outside-of-groove and inside-of-groove length measurements for OE-style fit
- OE series coverage for Nissan and Subaru applications
Detailed Description
MOOG 391 is engineered for driveline and axle service where a precise universal joint is needed to restore smooth power transfer through the drive shaft. The 4 grooved round bearing design, paired with matching 0.985-inch bearing caps and 44.0 mm length dimensions, supports accurate replacement in front driveshaft, rear driveshaft, and intermediate shaft locations. This part number 391 is a direct-fit style solution for select Nissan D21, Pathfinder, and 720 applications, including Japan-built D21 models with VIN beginning JN6.
MOOG builds this universal joint with materials selected for durability and testing focused on consistent performance. The greaseable design helps support routine service, while the bearing cap and groove configuration are suited to OE-style driveline repair work. This makes MOOG 391 a strong match for technicians and DIY buyers searching for a Nissan 720 universal joint, Nissan Pathfinder front driveshaft U-joint, or Nissan D21 transfer case driveline repair part.
This part cross-references Spicer 5-1501X for the same application.
What It Helps Fix
- Driveline vibration caused by worn universal joint bearings
- Clunking or driveline play during acceleration or deceleration
- Binding or rough movement in the drive shaft
- Grease loss and service issues in a worn U-joint
- Noise from front or rear driveshaft articulation points
Installation Notes and Tips
Verify bearing cap diameter, length measurements, and groove style before installation. Confirm the vehicle position and build details, especially for 1982-1983 Nissan 720 applications through 09/1982 and 1988-1989 Nissan D21 Japan-built VIN JN6 models. Clean the yoke bores thoroughly, align the bearing caps carefully, and grease the joint after installation through the bearing fitting.
- Fits 1988-1989 Nissan D21, Front Driveshaft at Transfer Case
- Fits 1988-1989 Nissan D21, Front Driveshaft at Front Axle
- Fits 1988 Nissan Pathfinder, Front Driveshaft at Transfer Case
- Fits 1988 Nissan Pathfinder, Front Driveshaft at Front Axle
- Fits 1982-1983 Nissan 720, Rear Driveshaft at Transfer Case
- Fits 1982-1983 Nissan 720, Rear Driveshaft at Rear Axle
- Fits 1982-1983 Nissan 720, Intermediate Shaft at Transmission
- Fits 1982-1983 Nissan 720, Intermediate Shaft at Transfer Case
- Fits 1982-1983 Nissan 720, Front Driveshaft at Transfer Case
- Fits 1982-1983 Nissan 720, Front Driveshaft at Front Axle
- Fits 1980-1981 Nissan 720, Rear Driveshaft at Transfer Case
- Fits 1980-1981 Nissan 720, Rear Driveshaft at Rear Axle
- Fits 1980-1981 Nissan 720, Intermediate Shaft at Transmission
- Fits 1980-1981 Nissan 720, Intermediate Shaft at Transfer Case
- Fits 1980-1981 Nissan 720, Front Driveshaft at Transfer Case
- Fits 1980-1981 Nissan 720, Front Driveshaft at Front Axle
- Fits 1978-1979 Nissan 510, At Transmission
- Fits 1978-1979 Nissan 510, At Rear Axle
- Fits 1968-1973 Nissan 510, At Transmission
- Fits 1968-1973 Nissan 510, At 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 faster, more straightforward installation in service applications.
| Year | Make | Model | Drive Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1989 | Nissan | D21 | 4WD | 2.4L | L4 | Front Driveshaft at Transfer Case | Fitment: Japan Built VIN Begins With JN6 Premium Universal Joint |
| 1989 | Nissan | D21 | 4WD | 2.4L | L4 | Front Driveshaft at Front Axle | Fitment: Japan Built VIN Begins With JN6 Premium Universal Joint |
| 1988 | Nissan | D21 | 4WD | 2.4L | L4 | Front Driveshaft at Transfer Case | Fitment: Japan Built VIN Begins With JN6 Premium Universal Joint |
| 1988 | Nissan | D21 | 4WD | 2.4L | L4 | Front Driveshaft at Front Axle | Fitment: Japan Built VIN Begins With JN6 Premium Universal Joint |
| 1988 | Nissan | Pathfinder | 4WD | 2.4L | L4 | Front Driveshaft at Transfer Case | Fits various makes and models of vehicles. |
| 1988 | Nissan | Pathfinder | 4WD | 2.4L | L4 | Front Driveshaft at Front Axle | Fits various makes and models of vehicles. |
| 1983 | Nissan | 720 | 4WD | — | — | Rear Driveshaft at Transfer Case | Thru 09/1982; Premium |
| 1983 | Nissan | 720 | 4WD | — | — | Rear Driveshaft at Rear Axle | Thru 09/1982; Premium |
| 1983 | Nissan | 720 | 4WD | — | — | Intermediate Shaft at Transmission | Thru 09/1982; Premium |
| 1983 | Nissan | 720 | 4WD | — | — | Intermediate Shaft at Transfer Case | Thru 09/1982; Premium |
| 1983 | Nissan | 720 | 4WD | — | — | Front Driveshaft at Transfer Case | Thru 09/1982; Premium |
| 1983 | Nissan | 720 | 4WD | — | — | Front Driveshaft at Front Axle | Thru 09/1982; Premium |
| 1982 | Nissan | 720 | 4WD | — | — | Rear Driveshaft at Transfer Case | Thru 09/1982; Premium |
| 1982 | Nissan | 720 | 4WD | — | — | Rear Driveshaft at Rear Axle | Thru 09/1982; Premium |
| 1982 | Nissan | 720 | 4WD | — | — | Intermediate Shaft at Transmission | Thru 09/1982; Premium |
| 1982 | Nissan | 720 | 4WD | — | — | Intermediate Shaft at Transfer Case | Thru 09/1982; Premium |
| 1982 | Nissan | 720 | 4WD | — | — | Front Driveshaft at Transfer Case | Thru 09/1982; Premium |
| 1982 | Nissan | 720 | 4WD | — | — | Front Driveshaft at Front Axle | Thru 09/1982; Premium |
| 1981 | Nissan | 720 | 4WD | — | — | Rear Driveshaft at Transfer Case | Fits various makes and models of vehicles. |
| 1981 | Nissan | 720 | 4WD | — | — | Rear Driveshaft at Rear Axle | Fits various makes and models of vehicles. |
| 1981 | Nissan | 720 | 4WD | — | — | Intermediate Shaft at Transmission | Fits various makes and models of vehicles. |
| 1981 | Nissan | 720 | 4WD | — | — | Intermediate Shaft at Transfer Case | Fits various makes and models of vehicles. |
| 1981 | Nissan | 720 | 4WD | — | — | Front Driveshaft at Transfer Case | Fits various makes and models of vehicles. |
| 1981 | Nissan | 720 | 4WD | — | — | Front Driveshaft at Front Axle | Fits various makes and models of vehicles. |
| 1980 | Nissan | 720 | 4WD | — | — | Rear Driveshaft at Transfer Case | Fits various makes and models of vehicles. |
| 1980 | Nissan | 720 | 4WD | — | — | Rear Driveshaft at Rear Axle | Fits various makes and models of vehicles. |
| 1980 | Nissan | 720 | 4WD | — | — | Intermediate Shaft at Transmission | Fits various makes and models of vehicles. |
| 1980 | Nissan | 720 | 4WD | — | — | Intermediate Shaft at Transfer Case | Fits various makes and models of vehicles. |
| 1980 | Nissan | 720 | 4WD | — | — | Front Driveshaft at Transfer Case | Fits various makes and models of vehicles. |
| 1980 | Nissan | 720 | 4WD | — | — | Front Driveshaft at Front Axle | Fits various makes and models of vehicles. |
| 1979 | Nissan | 510 | — | — | — | At Transmission | Fits various makes and models of vehicles. |
| 1979 | Nissan | 510 | — | — | — | At Rear Axle | Fits various makes and models of vehicles. |
| 1978 | Nissan | 510 | — | — | — | At Transmission | Fits various makes and models of vehicles. |
| 1978 | Nissan | 510 | — | — | — | At Rear Axle | Fits various makes and models of vehicles. |
| 1973 | Nissan | 510 | — | — | — | At Transmission | Fits various makes and models of vehicles. |
| 1973 | Nissan | 510 | — | — | — | At Rear Axle | Fits various makes and models of vehicles. |
| 1972 | Nissan | 510 | — | — | — | At Transmission | Fits various makes and models of vehicles. |
| 1972 | Nissan | 510 | — | — | — | At Rear Axle | Fits various makes and models of vehicles. |
| 1971 | Nissan | 510 | — | — | — | At Transmission | Fits various makes and models of vehicles. |
| 1971 | Nissan | 510 | — | — | — | At Rear Axle | Fits various makes and models of vehicles. |
| 1970 | Nissan | 510 | — | — | — | At Transmission | Fits various makes and models of vehicles. |
| 1970 | Nissan | 510 | — | — | — | At Rear Axle | Fits various makes and models of vehicles. |
| 1969 | Nissan | 510 | — | — | — | At Transmission | Fits various makes and models of vehicles. |
| 1969 | Nissan | 510 | — | — | — | At Rear Axle | Fits various makes and models of vehicles. |
| 1968 | Nissan | 510 | — | — | — | At Transmission | Fits various makes and models of vehicles. |
| 1968 | Nissan | 510 | — | — | — | At Rear Axle | Fits various makes and models of vehicles. |
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