I am willing to bet the new rotors, pads, stainless lines and bleeding fresh fluid into the braking system makes more of a difference than the actual calipers do. I say this knowing that a colorado 4x4 z71 club cab curb weight is 3800lbs and 2nd gen troopers are between 4200 and 4600lbs. Some people have said they are the same calipers as a full size chevy truck. They are not. I also say this because the rotor diameter isnt changing and the best way to upgrade braking is to put a larger rotor on, not clamp a small one harder (if the Colorado calipers even do). Its a great write up and most people I've seen have been happy with the swap. Since I have Colorado calipers as well, I also know the calipers are insanely close to the back of the rotors. Lastly, everyone who has done this swap seems to have high mileage rotors, worn stock pads, old brake fluid and squishy rubber lines. I would love to see a fair comparison between clean and well lubed calipers, new or resurfaced stock rotors bedded in with new stock ceramic pads, stainless lines and new fluid to the colorado calipers with stock ceramic pads before I reccomended it to anyone. I also know that even with a totally stock braking system, resurfaced rotors and EBC pads make a HUGE difference. Even the powerstop pads and rotors I had on my 94 trooper with 33x1250s stopped that thing pretty fast and held it well down hills where the back tires were lifting. Just my 2 cents. Take it or leave it, but dont take anything away from all the work he put into this write up because that is awesome.