Open the pliers so that one jaw is on the back of the hanger and the other jaw is on the tip of the hanger arm, close the pliers to force the hanger arm back into the hanger. Once the hanger arm is back in the hanger as far is you can get it with the pliers you should be able to work it out the rest of the way by hand with little trouble.
I'd avoid WD-40 if possible. My Ford manual warns that the hangers are made of a special material and lubricant should not be used.
wish I could have known this...... lol, all I knew was to twist the hangers......... the very rear hanger I took the longest screwdriver we could find, and put it between the bottom of the car and the lunchbox.......at least it worked 
Ya, WD-40 could in time melt your hanger I think that it's a chemical reaction. It could too make it sag in time. We have the same material we use at my work and we did some testing on them w/ multiple lubricants...if you need to use some kind of lubricant the safest is just some run of the mill motor oil...work like a charm
thanks for all the feedback guys, i did do some yanking and swearing really did help!! ha... the worst part was the bolts were rusted!!![?|] Those took forever... ill try to take pictures i dont think anyone has done a write-up on this... correct me if someone has....
only had time to get the stock off... the new one will be put on tommorrow morning...[headbang]