I got a Deville that would not shift into the 4th gear. I read posts here abotu the solenoid that need to be repalced, bought a kit of two solenoids, opened up the tranny, I see them, one is broken off almost, I cannot figure out how to take the old ones out. I only droped the bottom pane down, do I need to open up anything else? Do I have to turn them, or just apply force? NEED ADVICE!!! I am almost there to get my caddy back on the road, but still not there yet......