Hi Steve, I am pleased to assist you. Yes, the rear driver-side brake line is a pre-formed combination brake line that typically includes both steel or hard line and rubber hose sections. If you have a 1998-2004 Ford F-150 with 4-wheel disc on the axle without the total performance package, this should work effectively for the vehicle. You can click the link below to order directly and take advantage of our current discounts while supplies last. I hope this helps, and enjoy shopping! https://www.carparts.com/brake-line/motorcraft/mibrtr115?can=CPGG4850_CSQA_20250404

Hi Robert, thanks for initiating contact. This is a rubber brake hose, not a steel line. This part is designed to replace the flexible rubber hose that connects the steel brake lines to the brake caliper or wheel cylinder on the rear, driver side of the vehicle. Rubber brake hoses are essential for absorbing the movement and vibrations of the suspension and wheels. If your vehicle information matches this product, click the link below for direct ordering to take advantage of our ongoing discount and limited stocks. Happy shopping! https://www.carparts.com/brake-line/motorcraft/mibrtr115?can=CPGG4850_CSQA_20240627