This post takes place over a 7 day period:
On April 9, my shop owner friend, who is the son of the man I bought this truck from, has scheduled me in with the truck to do the oil cooler and transmission cooler lines, the transmission service and replace the solenoids/switches and harnesses and to do the lower steering column bearing. He said he had meant to do all of this work himself, except the transmission solenoids/switches/harnesses, but shop work got in the way and he kept putting his father off. I have all new Genuine GM parts and he said as long as I help, which I will, the shop use fee will be minimal and also allow for military discount. I have very slight seepage at one of the hydro-boost lines and if I can get it here by then, I am gonna add that in too. There will be pics.
Ok, gonna end up doing the "seeping now but sure to leak more later" hydro-boost unit. Looked and could not find a new Genuine GM or new AC Delco unit that listed the correct GVWR. The one I did find is from Bosch who makes several OE manufacturer units and I believe they make them for GM but not 100% sure. Maybe someone here knows.
According to GM Parts Direct, when I look at the OE part # and look at RA, the Bosch crossover for the correct GVWR is 0204777573 for $224.03 at RA, shipped and includes the 5% $10.95 discount. IIRC, all GM ABS units are Bosch, again, I could be wrong.
This morning, I pressure washed the booster/master cylinder area and the lines to the p/s pump assembly and the p/s pump as well. Took it on a long drive that was made longer because I wanted to put miles on in town with more brake applications and steering involved. Gonna be checking the entire system between now and April 9.
The new Bosch hydro-boost arrived today from RA. I have decided to also do the brake pedal pivot bushing and brake light switch while I am doing that hydro-boost replacement. There is some play in that bushing and might as well do it at same time. Those parts are ordered from RA and on the way. So, now all in one day, oil cooler lines, transmission cooler lines, transmission service and solenoids/harnesses replacement, lower steering column bearing replacement, new hydro-boost, brake pedal pivot bushing and stop light switch. Between me and my friend, should be doable. Gonna start at 9 am and hope to be done by 6 pm.