Description
1760 series greasable U-joint from HD Value (HD5677X) that replaces Spicer 5-677X, Meritor M677X, and Neapco 6-0677 on heavy-duty driveshaft applications. Half-round end-yoke style with a 1.938 in (49.225 mm) bearing cap diameter and 7.000 in snap-ring dimension.
Signs You Need a New U-Joint
- Clunk on driveshaft engagement when shifting between drive and reverse
- Vibration that increases with speed
- Rust-colored powder around bearing caps (dry trunnion failure)
- Visible play when the driveshaft is rotated by hand
- Grease seeping past the bearing cap seals
Specifications
| Manufacturer | HD Value |
|---|---|
| Part Number | HD5677X |
| Part Type | Universal Joint |
| Series | 1760 |
| Bearing Cap Diameter | 1.938 in (49.225 mm) |
| Snap Ring Dimension | 7.000 in (177.8 mm) |
| U-Joint Style | Half Round |
| Greasable | Yes |
Cross References
This part replaces or is equivalent to the following part numbers:
- Spicer: 5-677X
- Meritor: M677X
- Neapco: 6-0677
Applications
1760 series half-round U-joint for heavy-duty driveshaft applications with a 1.938 in bearing cap and 7.000 in snap-ring spread. Used on 1760-series Spicer driveline configurations across Class 8 highway tractors and vocational chassis.
Verify your driveline series, cap diameter, and snap-ring style before ordering to confirm fitment.
