okay, so its not the correct technical term, but you can see where the name "pickle fork" came from....most people, not all, in the auto industry know a pickle fork as a "ball joint separator"
[ame="http://www.google.com/search?hl=en&sugexp=pfwl&qe=cGlja2xlIGZv&qesig=UppNATnBL-dRJKENQUfu1g&pkc=AFgZ2tk4lz3e8nLYXs2rQmyQsg5rA45SNls8iMkVqkiMbs_f8vGppXqX043t6tMBEYBsOKNaKVcTixDyE9NLbSi12EPgylQptw&cp=9&gs_id=y&xhr=t&q=pickle+fork&gs_sm=&gs_upl=&bav=on.2,or.r_gc.r_pw.,cf.osb&biw=1280&bih=702&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi&ei=MDUiT4H2BqOSiQKWhoztBw"]pickle fork - Google Search[/ame]