Put goggles on, old clothes, drank just enough beer that it didn't seem miserable, and sprayed degreaser, soap, power washed, and even used a brush some places, and cleaned 20+ years of mud, dirt, gunk and grease out from the underside
It's not a show truck, and still looks a mess, but since I am going to re-do the fuel lines as I switch to EFI and besides I am changing it over to more of a beach cruiser/often driver vs off-road. I figured it would be nice not to have dirt fall in my eyes every time I am doing something.
Then I had to power wash the concrete driveway because it is amazing the amount of filth that comes off when you try