I found a power steering control valve at a good price that needed new seals. Chevy 2 Only had the correct seals, but no one sells just the boot for the ball stud. They all make you buy the stud to get the boot. The stud was fine, so I didn't want to spend $50 for both. I noticed that the 63-82 Corvette has a similar valve as the Nova, if not the same. Corvette suppliers sell the boot with seals for about $15. Perfect fit! I love saving money!!! FYI