Replacing Radiator...Need Help &Tips

I'll be replacing the radiator in my 96 Lumina this weekend and I was just checking out the Haynes manual and I found this step about removing transmission lines (part of the step I'm curious about) "To remove the quick-connect fittings, first pull back the plastic cap. Then use a tool with a bent tip to pull one of the open ends of the spring clip. Rotate it to disengage the projections from the slots. This will enable you to pull the transmission cooler pipe straight out of the fitting. When reconnecting the fitting, use a new spring clip and don't push it onto the fitting, which will bend it. Place one end of the clip into a slot into the fitting. Rotate the clip until all three projections have snapped into the slots. Insert the cooler pipe, which should seat with a definite click. Pull on it to confirm that it has seated. Slide the plastic cap up and onto the fitting, making sure that it seats without a gap between it and the fitting. The yellow identification band on the tube should be hidden inside the fitting." Have you guys performed this step before? I can't picture this step from other radiators that I've replaced...but it's been a very long time. Any tips or suggestions for this step or this job would be greatly appreciated. What do you guys use to cap off the cooler lines? Is their another name I should use for the "spring clip" from the above step so the guy in the auto parts store knows what I'm talking about? Can I use the good ole green coolant or do I need to use Dex-Cool? SORRY for all the questions, but I want to make sure I get everything I need before I start this job since I won't have a way to get back to the store after I start and I'm also limited on time, so I don't want any suprises. Thanks.

I'm looking for an answer to the same question. Did you get it figured out? Can the spring connect fittings be backed out of the radiator without destrying them? Thanks

I'm not sure about the spring clips. On my 96 it has the standard flared fitting that has been used for years. I disconnected the lines at the bottom of the radiator, under the fans since that is where the metal lines meet with the rubber flex lines and have standard hose clamps.
After pulling out the radiator, I removed the lines on the bench with a box wrench, since you can get it on over the end (reverse for installation).
A little transmission fluid will leak out, so catch it with newspaper or something.
There is also two different radiators for this year. The only difference is the standard one is a double-core, and the heavy duty one is a triple core. Either one will fit, but if you can, go with the triple core one.
Others probably know better than me, but I flushed out the system completely a few times until only clear water is in the system (remove the reservior and wash out completely as well).
Using only straight water, start up the engine and warm up well to look for leaks. If no leaks, let cool, then I drain out as much as you can, and fill it with straight green coolant (the stuff that says "compatable with all colors of coolants"). Do no dillute it, as there should be enough residual water still in the block. While filling, open the small bleeder screw on top of the water pump housing until coolant starts to flow out of it.
Fill up the reservoir with straight coolant as well.
I started using the green stuff after replacing many LIM gaskets due to failure from the orange stuff.

Thanks