I need one or both of the supply/return fuel lines that go from the frame up to the throttle body. they've got a section of pre-formed tube, then a section of steel braided flexible line. my steel braid has frayed, and the rubber is worn. i'll find out if it's the supply or return that i need, but i'll take both if ya got em. please help me, my k5 has been down for months, and i need to get it back on the road asap.