[old_master]

The first part is a fuel line retainer clip, any good auto parts store will have them. There are 2 sizes for the fuel lines: 5/16" for the return line and 3/8" for the fuel pressure line.

The second part is available at a GM dealer, or most good auto parts stores will have a repair kit line made by Dorman. The 4.3L S & T body does not have a fuel rail, all you'll need is the plastic line.

The R on the fuel pump module is for the return line, and the F is for the pressure line. If you look close you'll probably see a V also, that is the vapor line to the canister.

The broken fitting needs to be repaired. It most likely broke when you dropped the fuel tank... gotta be careful. If the line was broken before, it would spray fuel anytime the engine is running. You definitely would have noticed it!