5-28-327 Weld Tube Yoke 1610 Ser’ , Fits: 4.000 x 0.134 Tube , Butt Dia: 3.743 Inch

Q: The 5-28-327 shows a 3.250" butt diameter for a 4.000" tube -- why is this less than the 3.734" on the 1710-series 6-28-347 for the same tube?
A: The data on file for this part shows 3.250" butt for the 4.000"x0.134" tube. This suggests the 1610 yoke uses a different pilot depth or weld geometry where the step is cut more deeply to engage inside the tube, producing a larger-bore step and smaller pilot OD than the 1710 series at the same tube OD. Measure the original yoke butt diameter before ordering if your shaft shows a different value in the field.

Q: What U-joint is required for the 5-28-327?
A: The 1610 series uses a 1.875" cap diameter U-joint -- 0.063" smaller than the 1710's 1.938" cap. This difference in cap diameter is significant and prevents substitution of 1710 joints in a 1610 yoke without reaming the ear bores, which is not recommended. Cross-reference: Spicer 5-1310X for 1610-series joint identification in your U-joint catalog.

Q: Is the 3.000" CL-to-weld on the 1610 shorter than typical 1710 geometry?
A: Yes -- the 1610 weld yoke typically uses a shorter CL-to-weld than the 1710 for the same tube size (3.000" vs. 3.031" or 3.688"). This slight difference means a 1610 yoke will produce a shaft that is 0.031"--0.688" longer than a 1710 yoke of the same nominal tube length -- account for this in your shaft length calculation when changing series.