I have all McQuay-Norris front end components on my Skylark, I found them for a good price on e-bay. I don't know if they have different grades.
i am probably looking at the same kit. short money for what comes with it. i want to have good quality parts so i don't have to think about and budget for replacements within five years how is the ride and handling with that kit?
I bought that for my 72 convertible. Some components are made in USA which is what I was looking for. Some made in Mexico and some in China in this kit also. Parts installed well. I didn't notice any issues or obvious flaws with any of the components. I don't know how it drives or rides. May not ever know, but they look good.
The rubber boot on one of my upper ball joints is in tatters already, it's only about 6 months old. I don't know exactly why but I can tell you that nothing got up there and tore it. All I can figure is that the rubber boot was old and dry and cracked real easy.