i have never seen a metal line fail on any of mine and i have had a lot with 250,000 miles. your picture shows signs of bending, kinking etc. also they should never wear if installed with the spacers correctly.

i would say if it aint broke dont fix it.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.