Last fall I replaced the entire brake system on my 2001 Silverado. I average 350-400 miles a week through hills and back roads in upstate New York. No trailers, just a heavy camper with some tools. After buying cheap brand name aftermarket brakes that I have to change every year, I wanted to upgrade to something better. Everything was replaced from the master cylinder lines to those brakes. I've seen reviews of the front version companion kit, Power Stop KC2009-36 Front Z36 Truck, and tow brake