With the greatest of respect Mike I think you are wrong.
From the 80 series factory handbook:-
View attachment 147630
Firstly it refers to the items requiring lubrication as "the steering knuckles" and secondly the recommended lubricant is the same stuff they recommend to lubricate the U/J's on the next page, now even I know you only use the CV grease for CV joints and Lithium based NLGI No2 grease for bearings.
One thing to bear in mind is what happens to the grease when it goes through the hole, it rests on the outside of the CV joint exactly in line where the swivel bearings sit when the CV spins therefore a ring of NLGI no2 grease is created around the inside of the steering knuckle within the axle case where some of it lubricates the swivel bearings.
The position of where the grease enters and lands on the outside of the CV makes it impossible for the grease (of any kind ) to enter the CV where it is needed, thus my question about the location of the lubrication point.
The practical side of applying this recommended procedure is that (as I have said many times before) is that on my 1st Cruiser which was 2 years old when I bought it I fitted grease nipples to the plugs and greased the swivel housings every time I greased the props ( every 4500 miles). Before I sold it I removed the front wheels and split the track rod joints to see how it had worked over 16 years and 100K miles. the result was that they were perfect like they left the factory, no notches, barreling or grenading as it is called just smooth and no wear.
This is just as I see it Mike, the first thing I did when I got my first Cruiser was to read the handbook and I thought the bit about lubing the swivels was relevant as the Chevy's I'd had before all had greasable steering components and even on the most modern HGV's the only nipples on them are on the kingpins.