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U-Joint Measuring Guide
 
When to use this Guide: Ordering new U Joints or to determine U Joint size.
How to use this Guide:
  1. Determine whether you have inside or outside snap ring style U Joints then reference the appropriate chart for measurements.
  2. The U-Joint sizes listed below are the most common ones for cars, 4 x 4, light to medium duty trucks, and PTO shafts. If you do not find your U Joint size, call us for help. We carry many more sizes.
  3. Measure U Joint with caps on and fully compressed.
  4. Check all UJoints because they could be different.
  5. Go to our online store to select your U-Joint or simply call, fax or email the measurements to us. We stock many more UJoints than what is on the web store so call us if you do not find what you need.

Outside Snap Ring U-Joint / End Yoke Chart

Outside snap ring measurement guide
Dim. D
Dim. E
Series
1 1/16"
3 7/32"
1310
1 1/8"
3 7/32"
1310 Special*
1 1/16"
3 5/8"
1330
1 1/8"
3 5/8"
1330 Special*
1 3/16"
3 5/8"
1350
1 3/16"
4 3/16"
1410
1 3/8"
4 3/16"
1480
1 3/8"
4 31/32"
1550
 
For Dimension E using the end yoke, measure inside the two locating tabs.
*For 1310 & 1330 Special, only 2 caps are 1 1/8" & other 2 caps are 1 1/16" (primarily used on Ford applications).
 
Inside Snap Ring U-Joint / End Yoke Chart
Outside snap ring measurement guide
Dim. D
Dim. E
Series
31/32"
1 7/16"
L6
15/16"
1 1/2"
1000
1 5/64"
2 1/8"
7260
1 1/8"
2 9/16"
Saginaw / 3R
1 5/64"
2 5/8"
7290

For Dimension E using the end yoke, measure between the flat surfaces on the inside of the yoke.

For Dimension E using the UJoint, measure to the outside edge of snap ring groove in the cap.