First gen Tundras are beasts in terms of power, reliability and durability. However, factory brakes were, simply, not good enough. From 2000 to 2002, we suffered from small front brake calipers, but the worst part were the rear drum brakes and its non-working adjuster. I took the shot and installed this conversion kit. Installation was relatively simple if you have a bit of experience turning nuts in your garage. So far, brakes are working great, pedal feels firm when you press it and the truck stops just fine.
My only gripe is the parking brake lines have to be routed using your imagination, trying to avoid the suspension and other components, while keeping them protected from the road debris, but this is part of the fun .
Overall, a great conversion if you plan to keep your old Tundra, drive it for thousands of miles and then have your yet unborn great-grandchildren keep driving it while you watch them from heaven (or hell, we don't judge).