Dan the Gear Man® Tech Note 1:
QT4009 is made to work on most 1480 and 1485 series rear driveshaft and front axle shaft universal joints with 1-3/8" cup diameters and up to 4-3/8" overall width in heavy-duty 3/4 ton to 1-1/2 ton light trucks. For axle shafts and driveshaft u-joints, QT4009 is made to fit these domestic automotive universal joint sizes:
AAM (Chevy, Dodge, GMC): 1485 (1-3/8")
Spicer (All Makes): 1310 Wheel Joint, 1350 wheel Joint, 1480 (1-3/8")
Dan the Gear Man® Tech Note 2:
Due to the great many yoke styles used over the last 50 years for 1480/1485 series universal joints, you may need to modify the yoke legs with a grinder to fit your specific yoke configuration.