Don't know your name but I followed your thread on the Sulastic shackles. Good idea but the engineer in me says too much fulcrum pressure for them to last. I know why you want these simply because of the roads in Edmonton being so bad. I am looking at the Kelderman setup for the rear but it will cost about $1800cdn for them. I live in Salmon Arm and Calgary and tow a 5th wheel. A fellow next door to my acreage is a great welder fabricator. If I could get him to weld up the same setup for a few of us Canadians we could probably get them for $500 or less each minus the airbags. He has a lathe and is a certified welder so no issues there. The airbags are standard Firestone units. I have a Pacbrake so already have the compressor to up/down the system with on the fly. Early days but if you are interested please call me - Barry 250-804-6619

https://www.dropbox.com/s/fiirqgqd19...0pins.gif?dl=0Here's a picture hope you get it. Look at the arrows. The terminal has a small tab that sticks up like a barb. It goes into the terminal from the back. when its all the way in the barb pops up and stops the terminal from sliding out.
To remove it, you need something like a fat paperclip. Look at the terminal from the end its sticking out. You'll see it in the odd slot. You need to hold the wire forward a bit then insert the clip or wire to bend the barb back and easily pull back on the wire at the same time. It should just slip out. Before you slip it back into the connector, bend that barb back up a bit so it'll stick once its all the way in. They're flimsy so check that the terminals are all straight before you connect the sockets together.