Outside Snap Ring U-Joint Identifier

Outside Snap Ring Style U-Joint
Measuring Diagram and Series Chart

Width:
Measure the u-joint width by compressing the caps and measuring from outside of cap to outside of cap. When measuring an end yoke for the u-joint width measure from inside of tab to inside of tab. If you do not see a tab as shown, then you may have an inside snap ring u-joint.

Cap Diameter:
Measure the u-joint u-joint cap diameter. If you are measuring the end yoke, measure the width of the opening where the cap sits in the yoke.

Common Outside Snap Ring U-joint Series Chart

We recommend using a caliper or micrometer to most accurately measure u-joints. U-joint caps must be compressed when measuring the u-joint width. Once you have recorded your measurements, refer to this chart to find your u-joint series.

Series	Width (IN.)	Cap Diameter. (IN.)
1210	2 - ⁷₁₆ (2.438)	1 - ¹₁₆ (1.063)
1310	3 - ⁷₃₂ (3.219)	1 - ¹₁₆ (1.063)
1310 Ford*	3 - ⁷₃₂ (3.219)	1 - ¹₈ (1.125)
1330	3 - ⁵₈ (3.625)	1 - ¹₁₆ (1.063)
1330 Ford*	3 - ⁵₈ (3.625)	1 - ¹₈ (1.125)
1350	3 - ⁵₈ (3.625)	1 - ³₁₆ (1.188)
1355 **
1410	4 - ³₁₆ (4.188)	1 - ³₁₆ (1.188)
1415**	4.178	1 - ³₁₆ (1.188)
1480	4 - ³₁₆ (4.188)	1 - ³₈ (1.375)
1485**	4.178	1 - ³₈ (1.375)
1550	4 - ³¹₃₂ (4.969)	1 - ³₈ (1.375)
1555**	4.964	1 - ³₈ (1.375)

* 1310 Ford & 1330 Ford have 1 - ¹₈” cap at pinion yoke and 1 - ¹₁₆” cap at driveshaft.
** 1415, 1485, 1555 only found on Chrysler and some GM vehicles with American Axle built driveshafts.