carpet replacement

I decided it's time to replace my gross carpet (prev owner smoked) with a new OEM one, and do some sound deadening! I've done a lot of reading of previous posts and on Google. From what I gather so far, the recommendation is generally 3 stages. I saw that carbuilders have a great kit but they're...

Looking to replace the carpet in my 60, and based on the ACC website there is a year break when ordering from 81-85 and 86-87. Wondering what the difference would be?? Really do not need carpet that bad with only 132k miles on it....but why not! Good opportunity for some sound deadening