This quote has already been posted on the forum I do believe but is worth another posting

"When I was a boy of 14, my father was so ignorant I could hardly stand to have the old man around. But when I got to be 21, I was astonished at how much the old man had learned in seven years".

-Mark Twain

Some of the greatest philosophers in history like Confucius, Socrates and Ben Franklin made statements to the affect that a truly wise person is not wise because of how much he knows, but because of how much he realizes he doesn’t know.
Or as I have told myself for some time, the older I get the more I find I don’t know.
By those definitions there are not too very many wise people in our civilization, as almost everyone I know claims to know everything!
At any rate, whether in people, entertainment or in product quality, there does seem to be a race to the bottom happening that accelerates every year.

as to the mark twain quote, he is spot on !
as the older we got, i realized the old man was way smarter than i gave him credit for !
as he was so fond of saying when i would be driving a nail, miss and hit my thumb, thereby creating "new words" : "huh ! i didn't feel a thing !"

Dual point rotors have always been hit or miss, even in the old days, out of 10 you might get 2 that fit right. I have an original nos rotor I bought in the 70s that is so loose it falls off the shaft, and another from advance-BWD from1992 that is so tight you can hardly get it on. It appears at this point there are 2 styles made, neither better than the other. Check them after they get hot too. On u-joints you should only use Spicer like most driveline shops, Tony is right on the c-clips, in fact one brand of joints in the 70s and 80s all used the thicker clips, Ford or Mopar. Most people and shops could not install a u-joint right if their life depended on it, but that is another looong story.