Please please help, ball joints...

[kyman]

Ok so I asked about what ball joints I had in an earlier post. I was just now able to get time to get them out. I have a 67 c10. 8t has 5 lug discs on the front. Now here's the problem, it has the 67 control arms on it (best I can tell), but also has the 67 upper ball joints on it. They are a perfect match for the pics that Napa has on its in store computer. But that's not possible is it? I have zero idea what spindles are on the truck. Here's where I'm also stumped. Went to have front aligned, guy said uppers were toast, be careful driving home as he was afraid they would pop out of the socket. Well I get them apart, besides a blown boot, don't look too bad. Could the movement he was seeing be because the ball joints didn't fit correctly? What am I supposed to do now? Thank you guys for the help!