Heavy loads and rough trails put extra demand on a truck's brakes, and the Power Stop Z36 Truck & Tow Brake Upgrade Kit is a brake upgrade for trucks and 4x4s that tow, haul, or go off-road. This kit is matched to the Toyota 4Runner from 2003 to 2009 (models with 319 mm / 12.56 inch front rotors) and the Toyota FJ Cruiser from 2007 to 2009. It is intended for owners who want braking built for work and adventure instead of stock-level performance, so check the fitment list below against your model year and front rotor size before ordering. Features:• Brake upgrade for towing, hauling, and off-road driving• Made for trucks and 4x4s• Matched to 4Runner and FJ Cruiser applications• Step up from stock braking performance• Z36 series for work and trail useSpecs:• Brand: Power Stop• Product Name: Z36 Truck & Tow Brake Upgrade Kit• Product Type: Brake Upgrade Kit• Series: Z36• Application: Towing, hauling, off-road• Vehicle Type: Trucks and 4x4s• Required Front Rotor Size (4Runner): 319 mm (12.56 inches)Fits: 2003-2009 Toyota 4Runner, models with 319 mm (12.56 inch) front rotors2007-2009 Toyota FJ Cruiser 4Runner fitment Off-road capable FJ Cruiser fitment | PowerStop Power Stop Z36 Truck & Tow Brake Upgrade Kit - Toyota 4Runner and FJ Cruiser