Hi friends, First post here. My apologies if this has been covered already, but I couldn’t find any topics like it in the forums. I’ve got an 07 Liberty 4WD Sport and recently had a caliper fail due to the rear passenger hardline rusting through. I've since replaced that caliper and section of brake line with the pre-bent/pre-flanged OEM part, but while tracing the brake lines, noticed that I've got a lot of corrosion further up the brake and fuel lines. It probably won't be long before some more parts fail and I’m nervous going into the winter with it like this. I’m an amateur mechanic out of financial necessity, so I’m not sure how to proceed and could use some advice. My previous experience is limited to oil changes, brakes/rotors/calipers, and thanks to this forum, replacing the front driveshaft due to a bad rear CV joint. Here’s the damage: https://i.imgur.com/Nvnz3kB.jpg This block connects the main brake line to a hose which runs to another block on the rear axle (which also has the axle vent hose running vertically through it), where it attaches to the rear passenger line that I just replaced. I've identified the blocks and hose as 52129260AB; this part doesn't seem to hard to put in, but the fitting on the main brake line running from the engine bay looks to be so deteriorated, I probably won’t be able to get it out of the block and would have to cut the line. https://i.imgur.com/6VVqexy.jpg I also noticed that one of the fuel lines is close to rotting through. I’ve read it could cost me about $500-$800 to get this done by a shop, does that seem accurate? It’s a little out of my budget. I’ve found that the pre-bent/pre-flanged brake and fuel lines come as an assembly (52129255AF), but the only options I can find online are about $150, plus another $150-$250 for shipping, so that’s also not ideal. I’ve read that you can’t splice brake lines because of the hydraulic pressure. The brake hardline doesn’t seem too difficult to make myself from bulk line, it sounds like I only need the correct fittings, a tube bender, and a flange tool. Is that correct? Would I need to take it to a shop to bleed the ABS module after work like this? What about the fuel line? Do I need any special tools? Could I splice in a section of rubber hose here, or is that a bad idea because this line is also under pressure? Speaking of pressure, what are the two fuel lines? Obviously, one is a supply line, but is the other a return to keep the tank under pressure or something? If this is a supply line, how do I get fuel back into it after replacement? Another concern is that it doesn’t seem I can access these lines without removing the front driver side wheel liner. Is that difficult, and/or do I need any special tools? Sorry for all the questions; I'm still learning, but I appreciate you taking your time to read all of this and any responses I might get!