lines under pass side torque box

one or both of these are severed, do they go to the fuel tank? i wasn't sure if they were the vapor return lines or e-brake or drum brake lines... The drum brakes are making noise, but work, so i'm gonna rebuild them, the e-brake works, but not well, never did. so i'm down to fuel, the car still runs, drives and nothing leaks out of these lines. Is it the fuel vapor return, this would make sense, given location and direction. I'm not going to take anything big apart, but they are now routed under my sub-frame connectors, I have the carbon canister blocked off and the lines and plug out, so I'm not sure this matters, but I wanted to be sure what these 2 lines were. also, drum brakes, how do you check to see if the drum needs to be replaced?

hey bmp

should i even bother, or would it be more worth it to buy new ones for like $25 each, I just wanted to know how I can inspect them, so I can decide wether or not to buy new ones.

did them, 25 bucks a piece, 100 after everything, but what about the lines under the torque boxes, i inspected further, they must be the fuel vapor return, but they are rediculously corroded, they brake like toothpicks and i just threw some vac tubing to replace the part that i removed, which is what they are made out of further up. i did the brakes and now my e-brake is up in 3-4 clicks(awesome), and the rear brakes were doing nothing(shoes were same size as new ones and lack of brake dust), now that they are adjusted properly, my braking abilities have greatly increased.