These can be fun I have done it a few ways. I start with bench bleeding the master cylinder and then loosen the upper bleeders for awhile to allow a gravity bleed. I also used to have a cap with a hole in it and put light air pressure on the master cylinder while opening the bleeders creating a power bleeder method. The method I use on most all lift trucks now is a ATV motorcycle pressure bleeder that forces fluid from the bleeder through the master cylinder, a reverse power bleeder. You can buy one on Amazon or Ebay for about $20. Good luck