Splice a Drive Shaft Back Together on 1996 Ford F250 and Replace U Joints

Rebuilding front drive shaft in my 1996 ford f250 4x4 7.3L terrible diesel powerstroke truck
Cutting up the drive shaft to install a new chunk of drive shaft and two new u joints with grease nipples always get the grease nipples ones
And install and go for test ride in the deep powder.Snow