I ordered a 3-pcs set of EGRs brake lines this week. When they come in I’m going to start the brake job. I did clean, lube and replace parts on the front calipers last weekend. Any other ideas or helpful hints on how to bleed and flush all the fluid in the system and is there any tricks to changing the rear cylinders to the Chevy 3500s? Do I HAVE to turn the drums even if they seem smooth or just change the shoes and be done? Thanks everyone.