Brake Lines | Front | Ram 1500 4WD (2019-2025) Upgrade your worn-out rubber brake lines with Rough Country 's Stainless Extended Steel Brake Line Kit. Our DOT-approved brake line kits offer the necessary extra length to install your application, perfect for vehicles lifted 6in and for anyone who wants to swap out poor-performing or decaying factory brake lines.Rough Country 's Stainless Steel replacements offer superior protection and a seriously long lifespan. A braided stainless steel exterior keeps your lines free from off-roaddebris, rocks, and mud that can penetrate factory rubber lines. This durable outer layer also prevents expansion of the internal Teflon layer - even under 4,000PSI - keeping fluid moving to the brake line for a noticeably firmer brake pedal feel. High-quality hollow fasteners at both ends of each brake line provide a leak-free flow path. 89309