How to determine the universal joint size of a standard differential yoke

most USA made vehicles

 

(yokes with retaining tabs ** outside snap rings)
Cup Diameter(D) Length(E) Series Notes
1.063
3.250
1310
  
1.125
3.250
1310-Ford
 Ford differentials
1.063
3.625
1330
  
1.125
3.625
1330-Ford
 Ford differentials
1.188
3.625
1350
  
1.188
4.125
1410
  
   

 

(yokes without tabs ** inside snap rings)
Cup Diameter Length (A) Series Notes
1.125
2.556
3R
 GENERAL MOTORS
1.078
2.125
7260
DODGE
1.126
2.622
7290
DODGE