The tracks themselves are much too tall to work in a truck as is.
I've seen a few bucket seat Suburbans, believe those and trucks front seat floor pan is the same, so the tracks and seats should be a bolt in.
Just look at the floor in both vehicles. The trucks/Suburbans "hump up" just under the front seats, where they mount,, while the K5 floorpan is flat in the same location.