Brand: 
5-7439X Combination Universal Joint S55 to 1310 Series Conversion Universal Joint B-Cap Ford
$10.76
+50 in stock
Description
5-7439XU — UDS 1310X1310F Series U-joint, 1.063″ cap diameter, 3.219″ width, greaseable (Zerk fitting). Direct replacement for 1310X1310F Series driveline applications.
Full Description
The 5-7439XU universal joint from UDS delivers the dimensional precision that 1310X1310F Series driveshaft systems require. With a 1.063" cap diameter, 3.219" overall width, and greaseable (Zerk fitting) design, this U-joint provides a direct service replacement across the full range of 1310X1310F Series applications. This is a combination/conversion U-joint that bridges two different series, allowing a driveshaft upgrade without replacing both end yokes.
Performance and Design
Universal joints carry the full torque and bending loads of the driveshaft system. Every dimension on the 5-7439XU is held to the 1310X1310F Series standard: bearing cup bores that seat tightly in the yoke ears, a cross trunnion ground to consistent diameter across all four arms, and retention features that match the COMBO yoke design.
- Cap diameter: 1.063"
- Cap-to-cap width: 3.219"
- Lubrication: greaseable (Zerk fitting)
- Application note: 1310 TO 1310F -FORD
| Specification | Value |
|---|---|
| Series | 1310X1310F Series |
| Cap Diameter | 1.063" |
| Width (Cap to Cap) | 3.219" |
| Lube Type | greaseable (Zerk fitting) |
| End Style | COMBO |
| Notes | 1310 TO 1310F -FORD |
| Brand | UDS |
Full Specification Data
Dimensional specifications for the 5-7439XU. Cross-reference against your existing U-joint or the series rating of your driveshaft assembly.
Service and Replacement Guidance
U-joint service intervals depend on operating conditions. High-speed highway use in a balanced driveshaft produces less wear than low-speed off-road use with severe articulation angles. Inspect joints at every other oil change -- look for rust seeping from the bearing cups, axial play in the cross trunnion, or a squeaking noise during low-speed acceleration. Any of these symptoms indicate the joint is approaching end of life.
When replacing, use a proper U-joint press to seat the bearing cups squarely. Uneven seating causes the joint to bind at one point in its rotation, which manifests as a driveline vibration that tracks with vehicle speed -- often misdiagnosed as tire imbalance.
5-7439XU is stocked and ships from Universal Driveshafts. Pair with 1310X1310F Series end yokes and a balanced driveshaft for a complete drivetrain service.
Alternative parts:
Additional information
| Brand | UDS |
|---|---|
| Cap dia 1 | 1.063 |
| Cap dia 2 | 1.125 |
| Lube | Y |
| Notes | 1310 TO 1310F -FORD, B-Cap |
| Partn number | 5-7439XU |
| Series | 1310X1310F |
| Style | COMBO |
| Width 1 | 3.219 |
| Width 2 | 3.219 |
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