No special tool for the fuel lines under the truck. Just pry the clip out and pull the hose off.
You can also push the hose on and then push the clip in.



But for the fuel lines that attach up high on the back of the engine to the fuel rail (manifold) and the Fuel Pressure Regulator (FPR) you will need special tools to release the garter springs.

I like to use these tools for the garter springs:


The garter spring connection:


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