StopTech 6 Piston Front Big Brake Kit

The StopTech 6 Piston Front Big Brake Kit, engineered by SOS Performance, replaces the factory front brakes with StopTech ST60 6 piston calipers in red, black or silver, 323mm TRD Aero rotors in plain, drilled or slotted, and hard anodized 6061 T6 aluminum caliper brackets, for both sides. It needs 16 inch or larger wheels, and it is listed for the 1998 to 2002 4Runner, the 1996 to 2004 Tacoma and the 2000 to 2006 Tundra.

When the pads wear, the StopTech Sport pads and the Hawk Performance pads both fit the ST60 caliper, in a street ceramic or a more aggressive sport compound. Each order is a full front axle set of four pads.

Rotors: Check Your Wheel Size First

The 3rd gen 4Runner came with two front rotor sizes, 11.69" (297mm) and 12.55" (319mm), and which one your truck has follows its wheel size. These cross drilled and slotted rotors from Brake Performance are listed by wheel:

  • Rotors for 16 inch wheels: the larger 12.55" rotor, for November 1995 to 2001 4Runners with the 3RZ or 5VZ. Sold as a pair.
  • Rotors for 15 inch wheels: for November 1995 to 2002 4Runners with the 5VZ on 15 inch wheels, and the 1995 to 2004 Tacoma 6 lug.

Drilling and slotting take weight out of the rotor, help it shed heat and vent the gases that come off the pads, which means less fade after repeated hard stops.

Valves and Fittings for Custom Brake Work

  • Wilwood adjustable proportioning valve: set brake bias front to rear with a knob, reducing pressure by up to 57%. A common part in a rear disc conversion.
  • 2 lb residual valve: holds light pressure on the rear line after a drum to disc conversion, so the pedal stays firm instead of needing a pump.
  • Swagelok fittings: 1/8" NPT to 3/16" line, flaring the line as they tighten, which makes plumbing in valves and line locks much easier.
  • Mechanical line lock: holds the brakes locked using your normal hydraulics. Off road use only; it does not replace a parking brake.

Not sure which parts your truck needs, or whether your wheels clear the big brake kit? Contact our tech team with your year, engine and wheel size. Everyday pads, rotors and drums are under 1996 to 2002 4Runner brakes, trail and towing gear is in 3rd gen 4Runner overland, and the rest of the truck is in the 1996 to 2002 4Runner catalog.

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