Balljoint replacement?

[johns2000]

I was looking at my upper balljoints and it looks like there are studs without nuts holding them in, how would you replace them? How do you know there bad?

Thanks

[wolfpupsdad]

 thosestuds are actually rivets john. replaement ball jointscome with bolts, grind off the head, punch out the rivet and bolt the new ones in.

[Lou]

Upper Ball Joints rarely go bad, depending on the miles, I've seen the originals last well over a 150,000 miles. Check and see it there is any play in them, if there still tight I wouldn't replace them.

[johns2000]

That's what I thought thanks guy's.