Finished up the rear disc brake conversion
The 36 year old hydro boost started leaking bad and the brake light came on driving home a month ago
I expected that was coming with the change's
New power steering pump
New non stock power steering reservoir
along with the rear disc brake change
So finding a rebuild 84 hydro boost was tough ordered one from different chain's picture was correct but wrong unit was shipped to me
So I found that Rock auto would rebuild your unit so removed my unit and sent it to Rock Auto and it was rebuild by Cardone
Got in back in two weeks and reinstalled it without any issues
Needed help from the wife to move the unit around bit to get the pedal reattached replaced the stock master cylinder with a new not rebuilt
Took a while to get things working as I did not bench bleed the master cylinder and had leaks at the new proportioning valve
Everything now is working better than rear drum brakes E brakes are on and working now so a happy camper

Bought another 84 hydro boost from intercooled88 and sent that out for rebuild as a spare was rebuilt and shipped to me today.