Strut rod washers.... correct way to use.

Lot's of junk sold in the aftermarket.
Nothing new about that.
I put this page together 15 years ago. And the photo from Steve's former website is even older than that.
Making A-Body Strut rod Bushings Work
You need to check everything and make your own decisions.

I had to do a similar thing with my Polys back in 1999 when I installed IIRC PSTs. It helped with getting some caster. Those bushings are still in there with perhaps as much as 135,000 miles on them, many many of them hard; so I would not use the word junk.
Like Mattax said; "You need to check everything and make your own decisions".
and I will add;think about it guys. Think about the job that rod has to do; why that end is flex mounted; and what it does when the car is moving along in traffic,stopping, going, and turning. When you slam the brakes on, what keeps the wheel from tearing off?