2005-2015 Toyota X-Runner & Tacoma 2x4 Rear Disc Brake Conversion – TR12.2XR Upgrade your truck's rear braking system with the TR12.2XR Rear Disc Brake Conversion, designed for the 2005-2015 X-Runner & 5 Lug Tacomas. Designed to replace factory drums, this kit delivers modern braking performance, enhanced stopping power, and confident pedal feel. Key Features Calipers – High-strength aluminum calipers for maximum clamping force and reduced fade Centric High-Carbon Alloy Rotors – Engineered to resist warping, cracking, and uneven wear Brake Pads – Matching pads for quiet, consistent braking Balanced Performance – Engineered as a complete system for smooth, confident braking in all conditions Vehicle Fitments Direct Fit for 5 Lug Models with the SOS Performance Rear Disc Conversion Installed: 2005-2015 Toyota X-Runner 2005-2015 Toyota Tacoma 2x4 (5 Lug) Pad Options Ceramic – Quiet operation, low dust, smooth everyday performance Sport – Higher friction, stronger bite, more aggressive braking feel Parking Brake Add the mechanical parking brake assembly to retain full parking brake functionality with your disc conversion. Perfect for street use, towing, or vehicles where parking security is essential. The parking brake kit is HIGHLY recommended for manual transmissions. OEM drum-style parking brake offers around 50% more friction surface and a larger diameter than the rotor-integrated drum — recommended for maximum holding power NOTE: If you add on the parking brake kit, please ignore the "No Lines". You will recieve stainless or rubber lines depending on what you select on the "Select Brake Lines" dropdown. Master Cylinder Upgrade Kit Add the Master Cylinder Upgrade Kit to ensure proper hydraulic balance, firmer pedal feel, and consistent braking performance under heavy use. –Vehicles with manual tranmission include a required clutch reservoir What’s Included Rear Calipers (Pair) OEM Size Rear Rotors (Pair) Set of Brake Pads Rubber Brake Lines Mounting Brackets & Hardware Optional: Parking Brake Kit Optional: Master Cylinder Kit Installation Help Manual –Approximately 8 hour installation time (professional installation recommended) Replacement Parts Rotors Pads Not sure if a rear disc brake conversion is right for your Tacoma? Read our guide on Tacoma & Tundra rear disc brake conversions. Toyota Tacoma & Tundra Rear Disc Brake Conversion: Is It Worth It? Why Choose SOS Performance? Proven Quality: Every kit is designed, tested, and backed by years of hands-on performance experience. Performance You Can Trust: From daily driving to heavy-duty use, our components deliver reliability and confidence. Support That Cares: We’re a family-owned business dedicated to helping you get the right setup for your vehicle. Fast Shipping: Most orders ship same or next day, so you can get on the road quicker.
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