90% of the time a front CV is not needed.
In stock form the truck has a CV with the pinion pointed AT the t case flange. That is the correct application.
MOST lifted or custom rigs have some angle on the lower joint and thus a CV is not correct.
I run a LOW rig with a hi pinion front and NO cv driveline.
My rear axle however has the pinion pointed up (to slide over things,not drag pinion) at the T case flange and HAS a cv driveline.