I feel a bit silly not remembering this but... I need to know the correct current/equivalent fluids for the 400 CI engine and 400 THM automatic transmission. Figured it out and them down a while back and can't find them now.. Any assistance would be appreciated:
Oil
Automatic Transmission Fluid
Brake Fluid
Power Steering Fluid
Coolant

 

The original fluid was Dexron 2 or 3. In all honesty, the cheapest fluid today more than likely has a better additive recipe than the best fluid made when these cars were new.

I use Valvoline Max life in my vehicles. It’s about 25 bucks a gallon at Walmart. Hard to beat at that price.

 

Use Dex III. This is backwards compatible. The newer Dexron is not.