Do the wiper arms an my 97 z pull straight off like all GM's or is there a trick to removing the arm. Can i get one on the web.

 

Undo the bolt, and pull it off that's what I do on my 95 and a 97 should be identical. I spray some of that stuff to loosen nuts/bolts because mine had a little rust and did not want to come off, after sitting it came off easy. Just done force it too much as you will end up breaking something or undoing the plastic ball joints that holts things togther.