the brackets Ive seen and had(mine were all for the 3/4ton 8lug conversion for 15in wheels) bring the caliper really close to the knuckle, I doubt the 5lug conversion brackets brings it any closer than that. That being said the caliper brackets are the same, I bet. So usually you can find those type brackets on ebay for cheap. Then bolt it all together, find a 5 lug rotor with the backspacing that works. The 1/2 bracket should be a problem as long as you can find the appropriate rotor, 5lug rotors come in a great variety of backspacing.