I did say "back in the day" lol. I remember buying them at that price and having to listen to the Chevy guys cry because they could not get an aluminum driveshaft for anywhere near that price.new they are now over $250 not $150.
Im gonna put mine up for 200 obo when i sell it. I would not use them in anything over a 500 hp application.
Nearly everything on these cars shouldn't be used in a 500hp application LOL. Have you seen them twist before?