Chevrolet Low Cab Forward 2016 Manual page 353

352 Service and Maintenance
Driveshaft universal joint
(Two-piece shaft)
Single-piece driveshaft: 2 points;
Two-piece driveshaft: 3 points
Each driveshaft universal joint must
be greased heavily until grease
oozes at the 4 needle bearing oil
seal locations. After greasing, wipe
off excess grease.