The lines look great under the hood from the booster/cylinder. It was wet outside so I didn't look around the frame rail to see where the rust started. Is it best/necessary to replace the lines all the way back or can I start replacing further back. It just looks like a pain to bend/fit into the engine bay. Has anyone used other materials other than stock replacement such as rubber or stainless steel.

Cheers

92 4Runner SR5 3.0 standard tranny
4.88 gears, rear elocked, OME coils, SAW Tbars, allpro rock sliders and rear bumper, custom made front, downey v6 headers ...