well im replacing all my brakes on my 01 250 4wd, i got all 4 powerstop slotted and drilled rotors, powerstop severe duty pads front and rear, and braided lines from crown performance. i also plan on cleaning all the calipers and assuring that the slide pins are relubed and will work correctly. napa has all 4 calipers and slide pins in stock if i end up needing them. lastly i am going to replace all the fluid. how should i go about that? i thought about pulling all the lines off and letting them drain overnight, also thought about blowing the lines out with air, or should i just bleed each corner til i get clean fluid? any suggestions??