Well, you could run the jeep out of fuel...
When I replaced those lines, I unhooked them at the fuel pump first and tied them up so that the open end remained as high as possible (so as to prevent leakage). I then installed one end of the new line (and be sure to get fuel line...not vacuum line or some other rubber tubing) on the fuel pump, clamped it on, and then slipped a hose clamp on the other end of the new line. I loosened the old line's hose clamp, and twisted the hose a bit to break the seal on the metal line, and then just popped the old hose off and quickly slid the new hose on...then tightened down the new line and went. Of course, if your jeep has rubber fuel lines at the fuel tank between the tank and the metal line that runs along the frame, you could always stick a vice grip on that rubber line and pinch it off temporarily. Either way, you'll spill very little fuel. Just be ready to catch a few drops with an oil pan or something... Oh, and keep your trouble light way back /wwwthreads_images/icons/wink.gif...
Evolution of tools: stone, hammer, wrench, socket, impact, really big hammer, blue wrench.
When I replaced those lines, I unhooked them at the fuel pump first and tied them up so that the open end remained as high as possible (so as to prevent leakage). I then installed one end of the new line (and be sure to get fuel line...not vacuum line or some other rubber tubing) on the fuel pump, clamped it on, and then slipped a hose clamp on the other end of the new line. I loosened the old line's hose clamp, and twisted the hose a bit to break the seal on the metal line, and then just popped the old hose off and quickly slid the new hose on...then tightened down the new line and went. Of course, if your jeep has rubber fuel lines at the fuel tank between the tank and the metal line that runs along the frame, you could always stick a vice grip on that rubber line and pinch it off temporarily. Either way, you'll spill very little fuel. Just be ready to catch a few drops with an oil pan or something... Oh, and keep your trouble light way back /wwwthreads_images/icons/wink.gif...
Evolution of tools: stone, hammer, wrench, socket, impact, really big hammer, blue wrench.