New seat cover
 

The original upholstery in my '85 K20 was getting tired. Not a bad seat cover for $45 on Amazon, and made in the USA!

Before:
http://i296.photobucket.com/albums/m...psfausrmiv.jpg

After:
http://i296.photobucket.com/albums/m...pszwkwuyfh.jpg

Re: New seat cover
 

I had one very similar looking on my truck when I bought it, apparently it didn't last too long but did a good job protecting the recently redone seat under it from dogs.

Re: New seat cover
 

That's probably as cheap as you will find them. I bought a universal one on clearance for mine but it doesn't fit that good at the top. Yours is the correct model for our trucks and fits much better. If you don't cover that worn seat, your butt will start ripping the foam out of it and then you will be sitting crooked. That's what happened to mine, should have covered it years ago. They last forever. I have one in my other truck that is 30 years old.