The Hawk Performance HB303Y.685 is a rear street brake pad set built on the brand's LTS (Light Truck and SUV) compound, which uses a ferro-carbon friction formulation. Hawk designs the compound for full-size trucks and SUVs, where heavier weight and larger brake packages run hotter. The manufacturer positions it for stronger stopping power and better fade resistance than a standard replacement pad, with lower dust and noise for daily driving. Choose it over a budget pad if you tow, haul, or drive hard on mountain grades and want consistent pedal feel when the brakes heat up.
This set is listed for the Ford Excursion and F-250/F-350 Super Duty, and the year and trim coverage varies from listing to listing, so confirm your exact model, trim, engine, and drivetrain before ordering. The part number's ".685" suffix denotes the 0.685 in pad thickness. Search terms that match this product include rear LTS brake pads for F-250 Super Duty, ferro-carbon towing brake pads, HB303Y.685 rear pad set, and Excursion rear street brake pads. Pair the pads with iron or metal rotors, since Hawk's ferro-carbon formulations are not intended for carbon-ceramic rotors.
Swapping rear pads on these trucks is a conventional disc brake job that an experienced home mechanic can complete with a jack, jack stands, a socket set, and a C-clamp or caliper piston tool. Lube the caliper slide pins and abutment clips, inspect the rotors for wear, runout, and scoring, and torque the caliper bolts to the factory specification in a service manual. Because LTS compounds rely on proper transfer film, bed in the new pads by making a series of moderate stops from speed without coming to a full stop, then let the brakes cool before heavy use.
