Changing all fluids. Need advice

[markedgar5]

I'm looking to change all fluids and filters in my blazer as soon as I get it back from the paint shop. Is there a sticky or possibly a thread i havent found yet on what fluids are recommended as far as viscosity and any needed additives. 72 blazer orig eng/trans. 350 cid v-8 (1ls910) engine, automatic (1m4910 (turbo hydromatic)) trans. 3.73 rear axle (1hq510)PS, PB, 4x4.

I plan on changing and flushing when possible.
Power steering fluid
Brake fluid
Gear oil
Transmission fluid
Engine oil
Transfer case
The more I search the more confused I get as to what to use. Necessity of friction additives etc. I will likely go full synthetic unless for some reason it shouldn't be used in the older trucks. Thank you for any advice, I greatly appreciate it.
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