Hawk HPS 5.0 Rear Brake Pads for 2015-2020 Mustang Shelby GT350/GT350R - HB904B.630
Hawk HPS 5.0 rear brake pad set, part HB904B.630, for 2015-2020 Ford Mustang Shelby GT350 and GT350R 5.2L.
Requires the original four-piston fixed rear calipers and 380 x 26 mm ventilated iron rotors. Nominal pad thickness: .630 inch. Separate drum-in-hat parking-brake shoes are not included.
Excludes original EcoBoost, GT, Bullitt and GT500 brakes, carbon-ceramic rotors and aftermarket calipers. Converted brakes only: requires the complete Ford Performance M-2300-Y GT350R brake kit, with matching four-piston rear calipers, HB904 .630 pads and 380 x 26 mm iron rotors, correct retaining hardware and verified wheel clearance. Ford lists the kit for 2015-2023 Mustang GT 5.0L and EcoBoost 2.3L. Does not fit original GT/EcoBoost brakes, including GT Performance Pack. Stock 2015-2021 Mustang wheels do not clear these kit calipers. 2019 Bullitt conversion application remains unconfirmed. Requires a verified complete GT350R brake conversion with matching four-piston rear calipers, HB904 .630 pads and 380 x 26 mm iron rotors, correct retaining hardware and verified wheel clearance. Does not fit original Bullitt brakes. Ford M-2300-Y lists GT 5.0L and EcoBoost, but does not explicitly name Bullitt; confirm kit compatibility for this vehicle before ordering.
HPS 5.0 Compound
Street-focused compound with smooth initial bite, progressive pedal feel and improved fade resistance.
- Rear axle pad set
- Hawk part number: HB904B.630
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