pfft bags do not = fail...hydros do...i mean unless you like a shitty ride
anyways i almost forgot...i'm not sure how it is on frontiers but i think it's the same...when i had that setup my gas tank was lower than my frame so i relocated that as well cause i didn't want my truck catching on fire. i had the scratches and dents to prove it touched the ground a few times too lol
anyways i found some more pics with a better shot of the notch and i suggest you also cut out your wheel wells like such...cause goin over bumps n rubbin tires sucks