So I swapped cummins into my 1995 psd. I put nv4500 in it also. I had to run ford master cylinder and dodge slave cylinder, and have bunch air in the line, what's best way to bleed air out! Thanks

 

Don't try to bleed the clutch like brakes. You need two people, open the bleeder and push the clutch down slowly enough to not be pushing the slave out when you are just about to the floor tell the guy below to close the bleeder, repeat many times. Remember to keep checking the master as there is a very small amount of fluid!

 

Or you can reverse bleed it. Push fluid up from the bleeder valve to the master, works real easy if you use one of these.
Phoenix 2104-B V5 Reverse Brake Bleeder System - Speedway Motors, America's Oldest Speed Shop